Climate Flash Report

Daily climate technology and sustainability news - Updated: 2025-09-07

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The latest developments in climate technology and sustainability as of September 7, 2025, highlight significant activity in climate tech startups, clean energy funding, ESG investing, and climate policy challenges.

Climate Tech Startups and Funding

•U.S. climate tech funding increased by 21% in the first half of 2025 compared to the previous year, despite political and economic uncertainties[1].

•The Trellis Impact 25 list recognizes 25 promising early-stage climate tech startups across five sectors: energy, carbon, transport, industry, and nature, with an event scheduled for October 28-30, 2025, in San Jose, California, where startups will pitch to investors and officials[1].

•A new $300 million fund called the All Aboard Coalition, led by TED curator Chris Anderson and backed by top VCs like Breakthrough Energy Ventures and Khosla Ventures, aims to bridge the "valley of death" financing gap for climate tech startups transitioning from early-stage to commercial scale. This fund targets first-of-a-kind projects requiring $100-200 million rounds and plans to close by October 2025[2][3].

•The All Aboard Coalition addresses the decline in public funding under the current U.S. administration, which has led to a 60% drop in direct air capture startup funding in Q1 2025 and caused some startups to fold or downsize[3].

•Venture capital firms such as Breakthrough Energy Ventures and Lowercarbon Capital remain active investors in climate tech, focusing on decarbonization, energy storage, carbon capture, and clean energy technologies[4].

Clean Energy and Environmental Innovations

•While specific new clean energy projects were not detailed in today's news, the emphasis on funding first-of-a-kind power plants and factories through the All Aboard Coalition suggests ongoing efforts to scale clean energy infrastructure[2][3].

•Innovations span multiple sectors including carbon removal, transport, and nature-based solutions, as highlighted by the Trellis Impact 25 startups[1].

ESG Investing and Climate Policy

•The reduction in U.S. federal climate spending under the current administration has increased reliance on private capital and coalitions like All Aboard to sustain climate innovation[3].

•The coalition’s strategy to pool over $300 million and leverage $40 billion in managed assets aims to signal confidence to larger institutional investors, countering the policy-driven funding gap[3].

•No new ESG regulatory updates were reported today, but the funding and investment trends reflect ongoing market adaptation to shifting policy landscapes.

Carbon Impact Metrics

•Direct air capture (DAC) startups raised only $58 million in Q1 2025, down over 60% year-over-year, indicating a significant funding challenge for carbon removal technologies[3].

•The All Aboard Coalition’s focus on enabling first commercial-scale projects is critical for achieving measurable carbon reductions at scale, though specific carbon impact metrics from these startups or funds were not disclosed today.

In summary, the key climate tech and sustainability news today centers on increased private funding efforts to overcome public funding shortfalls, with a $300 million coalition fund launching to support scaling climate innovations, alongside recognition of promising startups driving decarbonization across multiple sectors[1][2][3][4].