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Daily climate technology and sustainability news - Updated: 2025-09-11

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On September 11, 2025, the major climate technology and sustainability developments center on a new $300 million fund launched by a coalition of top venture capital and private equity firms, called the All Aboard Coalition, which manages $60 billion in assets. This fund aims to bridge the critical "valley of death" funding gap for climate tech startups transitioning from pilot to commercial scale, targeting investments of $100–200 million to support manufacturing, prototype testing, and commercial deployment[1][4][5].

Key details include:

•

Funding context

Global climate tech funding dropped to $5.9 billion in Q2 2025, the lowest since 2020, with US startups in direct air capture (DAC) raising only $58 million in Q1 2025—a 60% decline year-over-year—due to reduced federal support under the Trump administration[1][2][5].

•

Coalition members

The All Aboard Coalition includes major firms such as Khosla Ventures, Breakthrough Energy Ventures, DCVC, Ara Partners, Clean Energy Ventures, and others, collectively managing over $60 billion in assets[1][4][5].

•

Strategic goal

The fund focuses on scaling clean energy and decarbonization technologies that require large infrastructure investments, which traditional venture capital often avoids due to risk and capital intensity[1][4].

•

Climate impact

By enabling startups to commercialize technologies like direct air capture, green hydrogen, and long-duration energy storage, the initiative aims to accelerate emissions reductions and support a low-emissions global economy[1][5].

Additional developments:

•The Trellis Impact 25 list highlights 25 promising early-stage climate tech startups across energy, carbon, transport, industry, and nature sectors, with US funding in H1 2025 up 21% compared to the previous year, indicating some resilience despite broader funding challenges[3].

•Policy-wise, the US federal climate spending cuts and grant freezes under the Trump administration have created a funding vacuum for expensive, long-term climate solutions, prompting private investors to fill the gap[2][5].

In summary, the latest climate tech and sustainability news for today emphasizes a significant private-sector funding initiative to support climate startups through a critical growth phase, counterbalancing declining public funding and aiming to drive impactful clean energy and carbon reduction innovations at scale.

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