Carbon Removal</strong></em></p><p>Carbon removal is the process of removing carbon dioxide from the atmosphere and sequestering it for permanent removal or sometimes using it for products like fuel. All IPCC scenarios to reach 1.5°C or even 2°C have accounted for massive amounts of carbon removal required, but have been light on details of which technologies they recommend. Many current technologies face large-scaling challenges due to energy and/or water requirements. </p><p><strong>Problems & Ideas:</strong></p><ul><li>Direct air capture</li><li>Nature-based methods</li><li>Trees (Afforestation & Reforestation)</li><li>Soil carbon sequestration & measurement</li><li>Building materials that sequester carbon</li><li>Carbon mineralization</li><li>Enhanced weathering</li><li>Coastal blue carbon</li><li>New ocean measurement and reporting software (MRV)</li><li>Marine biomass</li><li>Increasing ocean alkalinity</li></ul><p><strong>YC Companies: <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/noya/">Noya, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/airmyne/">Airmyne, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/living-carbon/">Living Carbon</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/phykos/">Phykos, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/heimdal/">Heimdal, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/holy-grail-inc/">Holy Grail</a> </strong></p><p><em><strong>Methane capture & removal</strong></em></p><p>Methane is the second biggest greenhouse gas, with 30x more warming potential than CO2 over a 100-year time frame and a staggering ~85x more warming potential over a 20-year time frame. We are likely to have a near-term gap between where the science says we need to limit warming (1.5°C) and the path we are realistically on. There are no commercial technologies that exist today for removing methane from the atmosphere – early research is ongoing – and the regulatory environment and incentives do not yet exist. While methane removal is still early, there are clear paths to commercializing technologies around methane emissions reduction.</p><p><strong>Problems & Ideas:</strong></p><ul><li>Methane measurement and monitoring tools</li><li>Methane emissions reduction technologies</li><li>Reduce emissions from network infrastructure</li><li>Reduce leakage/slip from natural gas engines</li><li>Mitigate other non-CO2 greenhouse gas emissions like nitrous oxide</li><li>Direct air capture of methane</li></ul><p><strong>YC Companies: <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/alga-biosciences/">Alga Biosciences</a> </strong></p><!--kg-card-begin: html--><table style=\"border:none;border-collapse:collapse;table-layout:fixed;width:468pt\"><colgroup><col></colgroup><tbody><tr style=\"height:0pt\"><td style=\"border-left:solid #000000 1pt;border-right:solid #000000 1pt;border-bottom:solid #000000 1pt;border-top:solid #000000 1pt;vertical-align:top;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;\"><p dir=\"ltr\" style=\"line-height:1.2;margin-top:0pt;margin-bottom:0pt;\"><span style=\"font-size:11pt;font-family:Arial;color:#000000;background-color:transparent;font-weight:400;font-style:italic;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;\">Additional resources</span></p><p dir=\"ltr\" style=\"line-height:1.38;margin-top:0pt;margin-bottom:0pt;\"><span style=\"font-size:11pt;font-family:Arial;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;\">YC Carbon Removal RFS: </span><a href=https://www.ycombinator.com/"http://carbon.ycombinator.com//" style=\"text-decoration:none;\"><span style=\"font-size:11pt;font-family:Arial;color:#1155cc;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:underline;-webkit-text-decoration-skip:none;text-decoration-skip-ink:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;\">http://carbon.ycombinator.com/</span></a></p><p dir=\"ltr\" style=\"line-height:1.2;margin-top:0pt;margin-bottom:0pt;\"><span style=\"font-size:11pt;font-family:Arial;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;\">Carbon removal knowledge gaps: </span><a href=https://www.ycombinator.com/"https://frontiergaps.softr.app//" style=\"text-decoration:none;\"><span style=\"font-size:11pt;font-family:Arial;color:#1155cc;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:underline;-webkit-text-decoration-skip:none;text-decoration-skip-ink:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;\">https://frontiergaps.softr.app/</span></a></p></td></tr></tbody></table><!--kg-card-end: html--><h3 id=\"renewable-fuels\">Renewable fuels</h3><p>Electric vehicles powered by batteries are an incredible innovation. But batteries have one major drawback – the further you want to go and the bigger the vehicle the more batteries the vehicle needs and a bigger percentage of its weight are batteries. This is a problem for sectors like international shipping, long-distance aviation, and (although debatable) freight trucking. While batteries are improving fast, it is going to take a long time to make up for the 35x energy density of jet fuel. These are big markets: just aviation and shipping, both of which are growing fast, represent 20% of all transportation emissions in the world. Another big market opportunity for renewable fuels is energy storage. And it will take many decades to phase out all gas vehicles in the world, which creates a big need for transitionary drop-in fuel replacements. </p><p>Renewable fuels can be categorized into two categories: Electrofuels and advanced biofuels. Both are effectively powered by the sun. </p><p><strong>Problems & Ideas:</strong></p><ul><li>More efficient and cheaper electrolyzers for hydrogen production</li><li>New microorganisms for biofuels</li><li>Infrastructure for green hydrogen storage</li><li>Innovation to drive down costs in woody biomass-based approaches to biofuels</li><li>Advanced biofuels</li></ul><p><strong>YC Companies: <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/prometheus/">Prometheus, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/phoenix-hydrogen/">Phoenix Hydrogen</a> </strong></p><h3 id=\"vehicle-breakthroughs\">Vehicle Breakthroughs</h3><p>Approximately 75% of vehicle-based emissions are in categories that have obvious paths to electrification. The remaining 25% will need to either capture the emitted carbon, use renewable fuels, or will require a breakthrough in the technology available today in order to fully convert to electric alternatives. Here is a breakdown of emissions by hard-to-electrify vehicle category:</p><ul><li>Aviation (11%): Difficult due to battery energy density to weight ratio. Short-haul electric aviation is currently difficult but possible, and with 45% of all global airline flights being under 500 miles, is an interesting near-term opportunity <a href=https://www.ycombinator.com/"https://www.nrel.gov/docs/fy22osti/80220.pdf/">x. Long-haul aviation does not currently have a generally accepted path to electrification, and the industry plans to transition to <a href=https://www.ycombinator.com/"https://www.ycombinator.com/blog/rfs-climatetech/#renewable-fuels\">Sustainable Aviation Fuel</a> in order to mitigate emissions. Hydrogen is another potential alternative for long-haul aviation</li><li>Shipping (10%): Difficult for similar reasons to aviation, including needing a staggering amount of battery storage capacity for longer routes. Also similar to aviation, there may be some possibilities for short-haul electrification. For long-haul routes, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/blog/rfs-climatetech/#carbon-removal-carbon-capture\">CCS</a> or <a href=https://www.ycombinator.com/"https://www.ycombinator.com/blog/rfs-climatetech/#renewable-fuels\">renewable fuels</a> will likely provide emissions reductions.</li><li>Construction vehicles (4%): Very early category with limited progress to date.</li><li>Recreational boats (0.2%): While boats in this category “only” produce 12.5M tons of CO2e emissions, there may be other advantages to electrification in this category, such as reducing noxious fumes, noise, and the ability to fully benefit from renewable energy from solar, wind, and hydro generation.</li></ul><p><strong>Ideas:</strong></p><ul><li>Hybrid technologies that can reduce the majority of emissions by supplementing combustion power with electric power, without the need to fully convert or retrofit.</li><li>Boats (passenger and recreational)</li><li>New or retrofitted electric cargo ships</li><li>Semi-truck electrification - both for drayage and long-haul applications.</li><li>Electric construction vehicles</li><li>Electric work site power</li><li>Zero-emissions port vehicles and equipment</li></ul><p><strong>YC Companies: <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/cruise/">Cruise, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/heart-aerospace/">Heart Aerospace</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/sixwheel/">SixWheel, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/fleetzero/">Fleetzero, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/wright-electric/">Wright Electric</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/talyn-air/">Talyn Air</a>, <a href=https://www.ycombinator.com/"https://primelightworks.com//">Prime Lightworks</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/beyond-aero/">Beyond Aero</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/h3x-technologies/">H3X Technologies</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/regent/">REGENT, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/odys-aviation/">Odys Aviation</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/pyka/">Pyka, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/hypermile/">Hypermile, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/seaflight-technologies/">Seaflight Technologies</a> <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/boundary-layer-technologies/">Boundry Layer</a> </strong></p><h3 id=\"advanced-energy-generation\">Advanced energy generation</h3><p>Nuclear energy has already delivered carbon-free energy grids in countries like Sweden and France. This was done in record time but for decades the nuclear industry has been challenged by regulatory pressure and increased costs which led the industry growth to a stand-still (with South Korea and China as the exceptions). But public support for nuclear power is growing again and there are a promising new set of companies creating small modular reactors (SMRs). Until we have evidence of long-term storage working for intermittent energy sources like solar and wind, nuclear will play a very important role in a decarbonized grid.</p><p><strong>Areas of interest:</strong></p><ul><li>Small modular nuclear reactors</li><li>Fusion</li><li>Flexible nuclear generation technologies</li><li>Fuel cycles that avoid or reduce nuclear waste issues</li><li>Fuel cycles that avoid or reduce proliferation risk issues</li></ul><p><strong>YC Companies: <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/oklo/">Oklo, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/helion-energy/">Helion Energy</a> </strong></p><h3 id=\"agriculture\">Agriculture</h3><p>Around 15% of the world’s greenhouse gas emissions are a result of beef production, farming, and agriculture. The majority of these are methane emissions of which beef production is its biggest contributor.</p><p>There are several ways startups are addressing this already. You can neutralize or reduce the emissions at the source – effectively making cows burp out less methane. This is a promising technology and would have an immediate effect on planetary heating but would still not account for the land-use impact of beef production. </p><p>The second major area startups have been addressing these emissions is by creating a new kind of alternative meat and dairy. There are two primary categories of startups: plant-based protein and cultivated/cultured meat. Plant-based companies like Impossible Foods and Beyond Meat are already worth billions of dollars but struggle with the costs of production. On the cultivated meat side there have recently been <a href=https://www.ycombinator.com/"https://www.fda.gov/food/food-ingredients-packaging/human-food-made-cultured-animal-cells/">regulatory breakthroughs</a> giving us hope of these hitting the shelf soon. </p><p><strong>Problems & Ideas:</strong></p><ul><li>Cheaper ways to produce plant-based protein and cultivated meat</li><li>Methane reduction/neutralization in beef production</li><li>Sustainable fertilizers</li><li>Soil carbon measurement tools (MRV) </li></ul><p><strong>YC Companies: <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/eclipse-foods/">Eclipse Foods</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/rebellyous-foods/">Rebellyous Foods</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/orbillion-bio/">Orbillion Bio</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/hedgehog-2/">Hedgehog, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/mooji-meats/">Mooji Meats</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/alga-biosciences/">Alga Bioscience</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/current-foods/">Current Foods</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/c16-biosciences/">C16 Biosciences</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/iron-ox/">Iron Ox</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/future-fields/">Future Fields</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/the-good-food-institute/">The Good Food Institute</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/shiok-meats/">Shiok Meats</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/micro-meat/">Micro Meat</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/numi-foods/">numi foods</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/brown-foods/">Brown Foods</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/nobell-foods/">Nobell Foods</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/ten-lives/">Ten Lives</a> </strong></p><h3 id=\"construction\">Construction</h3><p>The construction of buildings and infrastructure represents 13% of global emissions, with a majority of these emissions coming from the production of the raw materials required, such as concrete and steel. This will be a difficult industry to decarbonize due to challenges with inertia, low tolerance for any green premium, and lack of consumer awareness of the underlying materials used. And while there are significant challenges, construction materials is a $1T industry, so any company that can successfully solve these challenges has an opportunity for significant scale.</p><p><strong>Problems & Ideas:</strong></p><ul><li>Low or zero emissions concrete</li><li>Low or zero emissions steel</li><li>Commercialization of low-carbon building materials</li><li>Software to design buildings for lower energy and carbon footprint</li><li>New building materials to improve building energy efficiency</li><li>Construction vehicles & tools</li><li>Software for cities to automate new building codes</li></ul><p><strong>YC Companies: <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/moxion-power-co/">Moxion Power</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/carbon-crusher/">Carbon Crusher</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/intelline/">Intelline </strong></p><h3 id=\"industrial-heat-processes\">Industrial heat & processes</h3><p>Industry – the way that we transform raw materials into more useful ones – accounts for a significant percentage of global emissions. Many of the processes required to transform raw materials into cement, steel, chemicals, and plastics (among others) require a large amount of process heat and produce difficult-to-remove emissions. </p><p><strong>Problems & Ideas:</strong></p><ul><li>Renewable fuels as an alternative source of energy for heat</li><li>New processes that don’t produce emissions as a byproduct</li><li>Breakthroughs to electrify industrial processes</li><li>Infrastructure to transport and manage captured carbon</li><li>Capture excess renewable energy generation for grid integration benefits</li></ul><p><strong>YC companies: <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/phase-biolabs/">Phase Biolabs</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/solugen/">Solugen, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/medium-biosciences/">Medium Biosciences</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/alt-tex/">ALT TEX</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/birch-biosciences/">Birch Biosciences</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/genecis-bio/">Genecis Bio</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/ferveret-inc/">Ferveret </strong></p><h2 id=\"climate-adaptation\">Climate Adaptation<br></h2><h3 id=\"climate-intelligence\">Climate Intelligence</h3><p>As climate patterns continue to change, assumptions that rely on past data are increasingly breaking, affecting industries such as insurance, agriculture, and transportation. There is a new crop of companies that are building better predictive models, and others that are innovating on business models that can help these industries adapt and mitigate their risk. Another set of companies are launching new measurement hardware to collect data not previously available, such as satellites that monitor methane emissions and mesh sensor networks to collect moisture levels. </p><p><strong>Problems & Ideas:</strong></p><ul><li>Improved risk models for insurers, cities, and investors</li><li>Improved datasets for evaluating risk via models</li><li>Methane monitoring</li><li>Purpose-specific climate modeling for vulnerable industries like Agriculture and Transportation</li><li>Risk management or reduction software</li><li>Mesh sensor networks</li></ul><p><strong>YC Companies: <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/wyvern/">Wyvern, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/albedo/">Albedo, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/array-labs/">Array Labs</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/our-world-in-data/">Our World in Data</a> </strong></p><h3 id=\"fire\">Fire</h3><p>Extreme wildfire behavior has reached a breaking point caused by climate change and 100 years of poor forest management practices. Given longer, hotter, dryer fire seasons, this extreme behavior is accelerating: as one example, 18 of the 20 worst fires in California history have occurred in the last two decades. Extreme fires cause damage to landscapes, watersheds, homes, and cities with stakeholders like insurance companies, landowners, utilities, and private businesses heavily impacted. Wildfire also contributes back to climate change in a negative feedback loop: studies estimate that 18% of global CO2 emissions are caused by fire and that recent wildfires have erased two decades of emissions reductions in California.</p><p>Most experts agree that the solution to wildfire lies in making landscapes more resilient to fire, protecting homes and cities, and enabling rapid detection and suppression when warranted. However, current efforts are largely untouched by technology and startups.</p><p><strong>Problems & Ideas:</strong></p><ul><li>Landscape resiliency</li><li>Software to help land & timber managers understand risk</li><li>Robotic tools for safe fuel removal & treatment</li><li>Application of carbon credits to fuel treatments and landscape resiliency</li><li>New products & business models for currently wasted small-diameter timber</li><li>Protect homes & cities</li><li>Better data, models & risk mitigation for insurance</li><li>Better ways to reduce or eliminate powerline ignitions</li><li>Home protection & hardening</li><li>New approaches to suppression</li><li>Faster, more ubiquitous detection</li><li>Better situational awareness and intelligence for firefighters</li><li>Better allocation of aerial firefighting resources</li><li>Autonomous aerial fire suppression</li><li>Make suppression faster</li></ul><p><strong>YC Companies: <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/gridware/">Gridware, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/alba-orbital/">Alba Orbital</a></strong></p><p><em>(Special thanks to Bill Clerico for authoring this section)</em></p><h3 id=\"drought-water\">Drought / Water</h3><p>Climate change is altering the water cycle: heat creates more evaporation on land resulting in drier and more arid soil, while also creating more evaporation over the oceans causing shifting patterns of intense precipitation in some areas and extreme drought in others. Warming is also causing sea levels to rise. This creates two broad categories of problems: too much water, and too little water. </p><p>Another major water trend is workforce turnover: as a set of water experts age out, agencies are having a difficult time filling the hole in the workforce. There is an opportunity to codify much of the knowledge and experience that is departing into software and automation.</p><p><strong>“Too little water” Problems & Ideas:</strong></p><ul><li>Atmospheric water generation</li><li>Groundwater monitoring, management, and remediation</li><li>Future of desalination (though difficult for new tech to get off the ground due to heavy engineering and permitting overhangs)</li><li>Productive uses of desalination salt byproduct</li><li>Water sanitation and remediation of unwanted chemicals in the water supply</li><li>Non-contact sensing of chemical composition</li><li>Agricultural water circularity: managing runoff and reintroducing it into the top of the system</li><li>Reduce water use in industrial processes</li><li>Modified drought or heat-resistant crops</li></ul><p><strong>“Too much water” Problems & Ideas:</strong></p><ul><li>Disaster resilience in terms of preparation and recovery</li><li>Better approaches to applying floodwater to groundwater recharge</li><li>Stopping the impacts of rising water (e.g. where to pour the concrete for sea walls)</li><li>Brackish groundwater impacts of rising sea levels</li><li>Preparation and financial resilience for flooding</li></ul><p><strong>YC Companies: <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/waterplan/">Waterplan </strong></p><h2 id=\"green-fintech\">Green Fintech</h2><p>Finance is a strong and proven lever for decarbonization and is increasingly being tapped as an important part of the strategy toward decarbonization. A $27B “green bank” was created by the Inflation Reduction Act for projects that reduce GHG emissions, and financial institutions are beginning to offer better financing options for companies that are helping to reduce carbon emissions. With increased financing available, there is a new and emerging opportunity to create purpose-built fintech models suited to green project needs.</p><p><strong>Ideas:</strong></p><ul><li>Solutions for automating and streamlining non-venture financing of climate tech. This includes project financing, debt financing, government financing, and automating government incentive programs.</li><li>Discovery platforms for project and debt financing</li><li>Leverage public funds (e.g. IRA green bank mechanism) to unlock private sector funds</li><li>Purpose-built risk underwriting models</li><li>Alleviate cash flow needs with project and incentive awareness</li><li>Specific “green project” needs around e.g. building electrification</li></ul><p><strong>YC Companies: <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/plover-parametrics/">Plover Parametrics</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/perl-street/">Perl Street</a> </strong></p><h2 id=\"carbon-accounting-offsets\">Carbon Accounting & Offsets</h2><p>Reducing carbon emissions starts with measurement. Carbon accounting software measures all emissions an organization/company is emitting. Usually using the <a href=https://www.ycombinator.com/"https://www.epa.gov/climateleadership/scope-1-and-scope-2-inventory-guidance/">Scope 1</a>, <a href=https://www.ycombinator.com/"https://www.epa.gov/climateleadership/scope-1-and-scope-2-inventory-guidance/">Scope 2</a> and <a href=https://www.ycombinator.com/"https://www.epa.gov/climateleadership/scope-3-inventory-guidance/">Scope 3</a> standards. Companies around the world are now being required to report emissions to customers, public markets, and financial institutions because they believe that reducing carbon is future-proofing the business. </p><p>Measuring carbon emissions with software is the first step in order to set reduction goals each year. Carbon accounting software can surface the exact emissions from utility providers, transportation fleets, and industrial emissions and give recommendations for alternatives. For emissions that are not easy to reduce they can buy offsets or removal credits. These offsets are usually purchased through a carbon removal marketplace.</p><p>Having a lot of carbon emissions is a financial risk to investors and lenders. As a result, the financial industry has started requiring disclosures and plans from companies before offering financing. </p><h3 id=\"carbon-accounting-software\">Carbon Accounting Software</h3><p>The biggest category is carbon accounting software. Counting carbon emissions in an organization has historically been done manually with spreadsheets and consultants. All this will be replaced by software and we imagine both vertical and horizontal solutions.</p><p>Examples of vertical solutions are those that tackle specific industries or verticals like shipping, real estate, or industrials. </p><p><strong>Carbon accounting software does a few things: </strong></p><ol><li><strong>Measure</strong> a company’s carbon footprint</li><li>Help companies <strong>reduce</strong> their carbon footprint (e.g. recommendations)</li><li>Help companies <strong>offset</strong> carbon emissions</li><li>Help companies <strong>report</strong> on carbon emissions to public markets and regulatory bodies</li></ol><p><strong>Problems & Ideas:</strong></p><ul><li>Industry-specific carbon accounting</li><li>Software infrastructure for carbon accounting (Plaid for carbon accounting)</li><li>Supply chain integration of carbon accounting and procurement</li></ul><p><strong>YC Companies: <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/sinai/">Sinai, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/unravel-carbon/">Unravel Carbon</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/carbonchain/">CarbonChain, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/aklimate/">Aklimate, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/minimum/">Minimum, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/carbonfact/">Carbonfact, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/cambio-2/">Cambio, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/bend/">Bend </strong></p><h3 id=\"carbon-offset-and-removal-marketplaces\">Carbon Offset and Removal Marketplaces </h3><p>In order to reach the 1.5°C degree goal decarbonization alone is not sufficient – we also need massive amounts of carbon removal. We covered some of the promising ideas for carbon removal in the <a href=https://www.ycombinator.com/"https://www.ycombinator.com/blog/rfs-climatetech/#science-required\">science-required</a> section. There are already many startups that finance, measure, and sell these carbon removal credits but the market is still small. </p><p>Historically carbon removal credits have had a bad reputation. The reason for this is that it was difficult to know if they actually had an incremental impact (additionality), whether they were long-lasting (permanence), issues with double counting, and how accurately they were measured. Startups today are expected to have great answers to these questions and customers of carbon removal credits are requiring them. </p><p><strong>Problems & Ideas:</strong></p><ul><li>Carbon removal marketplaces</li><li>Financing of future carbon removal credits</li><li>New MRV software (measurement, reporting, and verification of carbon removal credits)</li><li>New approaches to increasing credibility of additionality claims<br>YC Companies: <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/pachama/">Pachama, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/pina-earth/">Pina Earth</a>, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/verdn/">Verdn, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/abatable/">Abatable, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/wren/">Wren, <a href=https://www.ycombinator.com/"https://www.ycombinator.com/companies/jasmine/">Jasminecommon misconception</a> is that you need a launched product or a lot of traction in order to get accepted. In fact, a founding team and an idea the team is excited to work on are sufficient, and anywhere between 25-50% of the companies that we accept each batch have just those two things.</p><p><strong><a href=https://www.ycombinator.com/"https://www.ycombinator.com/apply/">Apply here</a> for the next YC batch. We’re excited to hear from you!</strong></p><p>---<br><br><strong>Additional resources</strong></p><p><a href=https://www.ycombinator.com/"https://www.amazon.com/100-Solution-Solving-Climate-Change/dp/1612198384/">The 100% Solution: A Plan for Solving Climate Change</a> - Solomon Goldstein-Rose</p><p><a href=https://www.ycombinator.com/"https://www.amazon.com/Electrify-Optimists-Playbook-Energy-Future/dp/0262046237/">Electrify: An Optimist's Playbook for Our Clean Energy Future</a> - Saul Griffith</p><p><a href=https://www.ycombinator.com/"https://www.amazon.com/How-Avoid-Climate-Disaster-Breakthroughs/dp/0385546130//">How to Avoid a Climate Disaster: The Solutions We Have and the Breakthroughs We Need</a> - Bill Gates</p><p><a href=https://www.ycombinator.com/"https://www.amazon.com/gp/product/0593420470/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1\%22>Speed & Scale: An Action Plan for Solving Our Climate Crisis Now</a> - John Doerr</p><p><a href=https://www.ycombinator.com/"https://content.rewiringamerica.org/reports/rewiring-america-field-manual.pdf/">Rewiring America</a> - Saul Griffith, Sam Calisch, Laura Fraser</p><p><a href=https://www.ycombinator.com/"https://www.amazon.com/Bright-Future-Countries-Solved-Climate/dp/1541724100/">A Bright future: How Some Countries Have Solved Climate Change and the Rest Can Follow</a> - by Joshua S. Goldstein and Staffan A. Qvist</p><p><a href=https://www.ycombinator.com/"https://www.documentcloud.org/documents/23257578-ira-a-tipping-point-in-climate-action-1/">US Inflation Reduction Act: A Tipping Point in Climate Action</a> - Credit Suisse</p><p><a href=https://www.ycombinator.com/"https://www.youtube.com/@PrecourtInstitute/videos/">Stanford ENERGY</a></p><p><br></p>","comment_id":"1102296","feature_image":"/blog/content/images/2022/12/BlogTwitter-Image-Template1.jpeg","featured":true,"visibility":"public","email_recipient_filter":"none","created_at":"2018-03-05T09:00:43.000-08:00","updated_at":"2022-12-29T16:32:14.000-08:00","published_at":"2022-12-15T08:30:00.000-08:00","custom_excerpt":"At YC, we believe founders and startups can make a positive impact on climate change and support the transition to a sustainable future. Here are a few areas and ideas we find most interesting, and hope to see founders apply with.","codeinjection_head":null,"codeinjection_foot":null,"custom_template":null,"canonical_url":null,"authors":[{"id":"61fe29e3c7139e0001a710d1","name":"Y Combinator","slug":"y-combinator","profile_image":"/blog/content/images/2022/02/1200px-Y_Combinator_logo.svg.png","cover_image":null,"bio":"Y Combinator created a new model for funding early stage startups. Twice a year we invest a small amount of money ($150k) in a large number of startups (recently 200).\r\n\r\nThe startups move to Silicon","website":null,"location":null,"facebook":null,"twitter":null,"meta_title":null,"meta_description":null,"url":"https://ghost.prod.ycinside.com/author/y-combinator/"}],"tags":[{"id":"61fe29efc7139e0001a71173","name":"YC News","slug":"yc-news","description":null,"feature_image":null,"visibility":"public","og_image":null,"og_title":null,"og_description":null,"twitter_image":null,"twitter_title":null,"twitter_description":null,"meta_title":null,"meta_description":null,"codeinjection_head":null,"codeinjection_foot":null,"canonical_url":null,"accent_color":null,"url":"https://ghost.prod.ycinside.com/tag/yc-news/"},{"id":"638a7d499132af0001d1aee9","name":"rfs","slug":"rfs","description":"Request for Startups","feature_image":null,"visibility":"public","og_image":null,"og_title":null,"og_description":null,"twitter_image":null,"twitter_title":null,"twitter_description":null,"meta_title":null,"meta_description":null,"codeinjection_head":null,"codeinjection_foot":null,"canonical_url":null,"accent_color":null,"url":"https://ghost.prod.ycinside.com/tag/rfs/"}],"primary_author":{"id":"61fe29e3c7139e0001a710d1","name":"Y Combinator","slug":"y-combinator","profile_image":"https://ghost.prod.ycinside.com/content/images/2022/02/1200px-Y_Combinator_logo.svg.png","cover_image":null,"bio":"Y Combinator created a new model for funding early stage startups. Twice a year we invest a small amount of money ($150k) in a large number of startups (recently 200).\r\n\r\nThe startups move to Silicon","website":null,"location":null,"facebook":null,"twitter":null,"meta_title":null,"meta_description":null,"url":"https://ghost.prod.ycinside.com/author/y-combinator/"},"primary_tag":{"id":"61fe29efc7139e0001a71173","name":"YC News","slug":"yc-news","description":null,"feature_image":null,"visibility":"public","og_image":null,"og_title":null,"og_description":null,"twitter_image":null,"twitter_title":null,"twitter_description":null,"meta_title":null,"meta_description":null,"codeinjection_head":null,"codeinjection_foot":null,"canonical_url":null,"accent_color":null,"url":"https://ghost.prod.ycinside.com/tag/yc-news/"},"url":"https://ghost.prod.ycinside.com/rfs-climatetech/","excerpt":"Y Combinator has funded well over 100 climate tech startups, and together they are worth over $10B.","reading_time":24,"access":true,"og_image":null,"og_title":null,"og_description":null,"twitter_image":null,"twitter_title":null,"twitter_description":null,"meta_title":null,"meta_description":null,"email_subject":null,"frontmatter":null,"feature_image_alt":null,"feature_image_caption":null},{"id":"61fe29f1c7139e0001a71a3a","uuid":"16484158-b6e0-4ae2-96d4-dbae25e61c3b","title":"Updated Request for Startups","slug":"updated-request-for-startups","html":"<!--kg-card-begin: html--><p>The application deadline for YC Summer 2018 is on March 24, and in honor of the deadline, we published an update to our <a href=https://www.ycombinator.com/"http://www.ycombinator.com/rfs//">Request for Startups</a> (RFS).</p>\n<p>While many of the best ideas we’ve funded were ones that surprised us, there are always a collection of ideas we wish more founders would apply with. We periodically take time to write those ideas down and publish them <a href=https://www.ycombinator.com/"http://www.ycombinator.com/rfs/">here.
This RFS lists 25 categories — including 9 new ones:<br />\n1. <a href=https://www.ycombinator.com/"http://www.ycombinator.com/rfs/#brick\">Brick and Mortar 2.0</a><br />\n2. <a href=https://www.ycombinator.com/"http://www.ycombinator.com/rfs/#carbon\">Carbon Removal Technologies</a><br />\n3. <a href=https://www.ycombinator.com/"http://www.ycombinator.com/rfs/#meat\">Cellular Agriculture and Clean Meat</a><br />\n4. <a href=https://www.ycombinator.com/"http://www.ycombinator.com/rfs/#commodities\">Cleaner Commodities</a><br />\n5. <a href=https://www.ycombinator.com/"http://www.ycombinator.com/rfs/#memory\">Improving Memory</a><br />\n6. <a href=https://www.ycombinator.com/"http://www.ycombinator.com/rfs/#aging\">Longevity and Anti-Aging</a> (YC Bio)<br />\n7. <a href=https://www.ycombinator.com/"http://www.ycombinator.com/rfs/#safeguards\">Safeguards Against Fake Video</a><br />\n8. <a href=https://www.ycombinator.com/"http://www.ycombinator.com/rfs/#creators\">Supporting Creators</a><br />\n9. <a href=https://www.ycombinator.com/"http://www.ycombinator.com/rfs/#voice\">Voice Apps</a></p>\n<p>Please don’t feel like you need to be working on one of these ideas to apply to Y Combinator. As we’ve said many times, the people matter more than the idea. The RFS mostly exists to encourage you to apply if you’re already working on an idea in one of these areas.</p>\n<p>If you’d like to know what we look for in non-profits, read <a href=https://www.ycombinator.com/"https://blog.ycombinator.com/what-y-combinator-looks-for-in-nonprofits//">this post</a>.</p>\n<p>Applications for the YC Summer 2018 batch are open now. <a href=https://www.ycombinator.com/"http://www.ycombinator.com/apply//">Apply here</a>.</p>\n<!--kg-card-end: html-->","comment_id":"1102299","feature_image":"https://images.unsplash.com/photo-1519389950473-47ba0277781c?crop=entropy&cs=tinysrgb&fit=max&fm=jpg&ixid=MnwxMTc3M3wwfDF8c2VhcmNofDJ8fHN0YXJ0dXB8ZW58MHx8fHwxNjcwMjcxNDc5&ixlib=rb-4.0.3&q=80&w=2000","featured":false,"visibility":"public","email_recipient_filter":"none","created_at":"2018-03-05T23:59:38.000-08:00","updated_at":"2022-12-05T12:18:13.000-08:00","published_at":"2018-03-05T23:59:38.000-08:00","custom_excerpt":null,"codeinjection_head":null,"codeinjection_foot":null,"custom_template":null,"canonical_url":null,"authors":[{"id":"61fe29e3c7139e0001a710a2","name":"Kat Mañalac","slug":"kat-manalac","profile_image":"https://secure.gravatar.com/avatar/c15939b217561ebda4c129bfea5f65f3?s=512&d=mm&r=g","cover_image":null,"bio":"Kat is the Managing Outreach Officer at YC. She was Chief of Staff to Alexis Ohanian, cofounder of reddit, before joining YC as its Director of Outreach. Prior to that, Kat was at WIRED Magazine.","website":null,"location":null,"facebook":null,"twitter":null,"meta_title":null,"meta_description":null,"url":"https://ghost.prod.ycinside.com/author/kat-manalac/"}],"tags":[{"id":"61fe29efc7139e0001a71173","name":"YC News","slug":"yc-news","description":null,"feature_image":null,"visibility":"public","og_image":null,"og_title":null,"og_description":null,"twitter_image":null,"twitter_title":null,"twitter_description":null,"meta_title":null,"meta_description":null,"codeinjection_head":null,"codeinjection_foot":null,"canonical_url":null,"accent_color":null,"url":"https://ghost.prod.ycinside.com/tag/yc-news/"},{"id":"638a7d499132af0001d1aee9","name":"rfs","slug":"rfs","description":"Request for Startups","feature_image":null,"visibility":"public","og_image":null,"og_title":null,"og_description":null,"twitter_image":null,"twitter_title":null,"twitter_description":null,"meta_title":null,"meta_description":null,"codeinjection_head":null,"codeinjection_foot":null,"canonical_url":null,"accent_color":null,"url":"https://ghost.prod.ycinside.com/tag/rfs/"}],"primary_author":{"id":"61fe29e3c7139e0001a710a2","name":"Kat Mañalac","slug":"kat-manalac","profile_image":"https://secure.gravatar.com/avatar/c15939b217561ebda4c129bfea5f65f3?s=512&d=mm&r=g","cover_image":null,"bio":"Kat is the Managing Outreach Officer at YC. She was Chief of Staff to Alexis Ohanian, cofounder of reddit, before joining YC as its Director of Outreach. Prior to that, Kat was at WIRED Magazine.","website":null,"location":null,"facebook":null,"twitter":null,"meta_title":null,"meta_description":null,"url":"https://ghost.prod.ycinside.com/author/kat-manalac/"},"primary_tag":{"id":"61fe29efc7139e0001a71173","name":"YC News","slug":"yc-news","description":null,"feature_image":null,"visibility":"public","og_image":null,"og_title":null,"og_description":null,"twitter_image":null,"twitter_title":null,"twitter_description":null,"meta_title":null,"meta_description":null,"codeinjection_head":null,"codeinjection_foot":null,"canonical_url":null,"accent_color":null,"url":"https://ghost.prod.ycinside.com/tag/yc-news/"},"url":"https://ghost.prod.ycinside.com/updated-request-for-startups/","excerpt":"The application deadline for YC Summer 2018 is on March 24, and in honor of the deadline, we published an update to our Request for Startups (RFS).","reading_time":1,"access":true,"og_image":null,"og_title":null,"og_description":null,"twitter_image":null,"twitter_title":null,"twitter_description":null,"meta_title":null,"meta_description":null,"email_subject":null,"frontmatter":null,"feature_image_alt":null,"feature_image_caption":"Photo by <a href=https://www.ycombinator.com/"https://unsplash.com/@marvelous?utm_source=ghost&utm_medium=referral&utm_campaign=api-credit\%22>Marvin Meyer</a> / <a href=https://www.ycombinator.com/"https://unsplash.com/?utm_source=ghost&utm_medium=referral&utm_campaign=api-credit\%22>Unsplash%22},{%22id%22:%2261fe29f1c7139e0001a71647%22,%22uuid%22:%22a0db1bd9-0fdb-4515-b550-47469a5e1635%22,%22title%22:%22New RFS: One Million Jobs","slug":"new-rfs-one-million-jobs","html":"<!--kg-card-begin: html--><div class=\"posthaven-post-body\">\n<p>We want to fund companies that have the potential to create a million jobs. There are a<br />\nlot of areas where it makes sense to divide labor between humans and<br />\ncomputers—we are very good at some things computers are terrible at and vice versa—and<br />\nsome of these require huge amounts of human resources.</p>\n<p>This is both good for the world and likely a good business<br />\nstrategy—as existing jobs go away, a company that creates a lot of new jobs should be able to get a lot of talented people.</p>\n<p>(We aren’t looking for companies that plan to have a million employees. Probably the easiest way to do this is to create a platform that lets a million people create their own jobs. Uber may do this, for example. Healthcare or education platforms that let people provide services are other examples of what might work.)</p>\n<p>View other <a href=https://www.ycombinator.com/"http://www.ycombinator.com/rfs//">Requests for Startups</a>.</p>\n</div>\n<!--kg-card-end: html-->","comment_id":"709977","feature_image":null,"featured":false,"visibility":"public","email_recipient_filter":"none","created_at":"2014-07-02T10:11:28.000-07:00","updated_at":"2022-12-05T12:03:58.000-08:00","published_at":"2014-07-02T10:11:28.000-07:00","custom_excerpt":null,"codeinjection_head":null,"codeinjection_foot":null,"custom_template":null,"canonical_url":null,"authors":[{"id":"61fe29e3c7139e0001a710c1","name":"Sam Altman","slug":"sam-altman","profile_image":"/blog/content/images/2022/02/eifaoe14zqiueje28oo9.jpg","cover_image":null,"bio":"Sam Altman is the CEO of OpenAI. He was the president of YC from 2014-2019. He studied computer science at Stanford, and while there, worked in the AI lab.","website":null,"location":null,"facebook":null,"twitter":null,"meta_title":null,"meta_description":null,"url":"https://ghost.prod.ycinside.com/author/sam-altman/"}],"tags":[{"id":"61fe29efc7139e0001a71173","name":"YC News","slug":"yc-news","description":null,"feature_image":null,"visibility":"public","og_image":null,"og_title":null,"og_description":null,"twitter_image":null,"twitter_title":null,"twitter_description":null,"meta_title":null,"meta_description":null,"codeinjection_head":null,"codeinjection_foot":null,"canonical_url":null,"accent_color":null,"url":"https://ghost.prod.ycinside.com/tag/yc-news/"},{"id":"638a7d499132af0001d1aee9","name":"rfs","slug":"rfs","description":"Request for Startups","feature_image":null,"visibility":"public","og_image":null,"og_title":null,"og_description":null,"twitter_image":null,"twitter_title":null,"twitter_description":null,"meta_title":null,"meta_description":null,"codeinjection_head":null,"codeinjection_foot":null,"canonical_url":null,"accent_color":null,"url":"https://ghost.prod.ycinside.com/tag/rfs/"}],"primary_author":{"id":"61fe29e3c7139e0001a710c1","name":"Sam Altman","slug":"sam-altman","profile_image":"https://ghost.prod.ycinside.com/content/images/2022/02/eifaoe14zqiueje28oo9.jpg","cover_image":null,"bio":"Sam Altman is the CEO of OpenAI. He was the president of YC from 2014-2019. He studied computer science at Stanford, and while there, worked in the AI lab.","website":null,"location":null,"facebook":null,"twitter":null,"meta_title":null,"meta_description":null,"url":"https://ghost.prod.ycinside.com/author/sam-altman/"},"primary_tag":{"id":"61fe29efc7139e0001a71173","name":"YC News","slug":"yc-news","description":null,"feature_image":null,"visibility":"public","og_image":null,"og_title":null,"og_description":null,"twitter_image":null,"twitter_title":null,"twitter_description":null,"meta_title":null,"meta_description":null,"codeinjection_head":null,"codeinjection_foot":null,"canonical_url":null,"accent_color":null,"url":"https://ghost.prod.ycinside.com/tag/yc-news/"},"url":"https://ghost.prod.ycinside.com/new-rfs-one-million-jobs/","excerpt":"We want to fund companies that have the potential to create a million jobs. 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by Dalton Caldwell2/14/2024
Every week the YC Group Partners meet and discuss the current batch. One common area of discussion is ideas — what kind of ideas are these founders having the best luck with? Which ones are they pivoting away from?
These discussions also do a good job of helping us notice the gaps. Ideas that should be made real — and that we’d want to fund! — but that we aren’t seeing many people work on or apply with. In a recent discussion like this, we realized it was time to put together an entirely new Request for Startups.
The RFS is a YC tradition — you can find examples going back as far as 2009. Each one offers up ideas we’d want to see made real, in spaces that we believe will be important in the coming decades. The world is full of founders with expertise that could be tapped into something new and great; our hope is that this list inspires some of those people to do so — or if they’re already building, to apply to YC.
This new RFS lists 20 categories, each suggested and explained by at least one YC Group Partner:
These are by no means the only ideas we’ll accept — many of the best ideas are the ones we would never expect — but if you aren't sure what you want to work on, these RFSs should provide a useful jumping off point to begin your ideation process.
Applications for the YC Summer 2024 batch are open now and the early deadline to apply for the batch is February 21. Apply here.
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Dalton is Managing Director, Architect and Group Partner at YC. He was the cofounder and CEO of imeem (acquired by MySpace in 2009), and the cofounder and CEO of App.net.