Climate Flash Report

Daily climate technology and sustainability news - Updated: 2026-05-31

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Climate tech activity is rebounding, with global venture and growth investment up 8% to $40.5 billion in 2025 and 179 climate funds raising $92 billion in new capital, according to Trellis’s 2026 startup roundup.[1] The latest developments today are concentrated in AI-enabled climate solutions, grid/storage, materials innovation, and adaptation, with investors increasingly treating climate as both an infrastructure and resilience market.[1][2]

•Climate tech startups

•Trellis highlights 15 early-stage startups to watch in 2026 across data centers, materials, and adaptation, including WAVR Technologies (using waste heat from AI data centers to generate atmospheric water), Aepnus Technology (converting industrial waste into useful chemicals), and Beehive (AI for disaster preparation and response).[1]

•Visible.vc’s 2026 startup list emphasizes companies such as Antora Energy with more than $230 million raised plus a $14.5 million ARPA-E SCALEUP award, Form Energy with a 300 MW / 30 GWh battery deployment announced with Xcel Energy, and Quaise advancing millimeter-wave geothermal drilling toward a 50 MW initial pilot by 2030.[2]

•MIT Sloan’s 2026 startup profile highlights climate hardware and industrial decarbonization startups including Active Surfaces (ultralight peel-and-stick solar panels that are 90% lighter than conventional products), Forma Systems (software that reduces concrete cost and carbon footprint), and Helix Carbon (capturing CO₂ from blast-furnace waste gas for syngas).[6]

•Clean energy

•Battery storage remains a major focus: the Form Energy / Xcel Energy project is described as the largest battery energy storage system by energy capacity ever announced, aimed at supporting a Google data center in Minnesota.[2]

•Twelve is moving toward commercial production at its AirPlant One facility in Moses Lake, which is expected to begin making E-Jet fuel at scale in 2026, with purchasing interest from Alaska Airlines, IAG, Microsoft, and the U.S. Air Force.[2]

•Quaise Energy is pushing geothermal drilling with millimeter-wave technology, having reached 118 meters in granite in field testing and targeting commercial operation by 2030.[2][6]

•ESG investing

•The clearest market signal in the results is the rebound in climate capital: $40.5 billion in venture and growth investment in 2025, plus $92 billion raised by climate funds, indicating renewed investor appetite for climate exposure.[1]

•Investment is shifting toward AI-enabled solutions, which captured nearly 28 cents of every climate equity dollar, and toward adaptation, where funding was up 64% as investors price in physical climate risk.[1]

•Climate policy

•Trellis says the capital rebound was helped by the U.S. government’s enactment of the “One Big Beautiful Bill Act,” which clarified which policies it supports and reduced uncertainty for climate investors.[1]

•No additional policy text or regulatory details were available in the provided results, so the policy update here is limited to that market-moving federal action.[1]

•Environmental innovations

•WAVR Technologies is using waste heat from AI data centers to create water from the atmosphere, linking compute infrastructure with water generation.[1]

•Aepnus Technology is turning industrial waste into useful chemicals, pointing to circular-economy industrial decarbonization.[1]

•Beehive applies AI to disaster response, reflecting the rapid growth of climate adaptation tools.[1]

•S3 Markets from MIT Sloan is building infrastructur