San Francisco Climate Week 2025: Data Centers and Critical Minerals Take Center Stage

Now in its fourth year, San Francisco Climate Week continues to grow in scale and influence. While the 2024 edition was dominated by discussions on generative AI in climate solutions, and last year’s event grappled with capital deployment amid shifting U.S. climate policies, the 2025 iteration placed a heavy emphasis on data center infrastructure, grid optimization, and critical minerals.

Record-Breaking Attendance and Key Themes

This year’s Climate Week reportedly drew double the attendance of 2025, with approximately 60,000 attendees participating in more than 700 events. The shift in focus reflected the growing recognition that AI-driven energy demands are reshaping the climate tech landscape. With the U.S. economy relying on the AI sector amid global economic turbulence—including tariffs, geopolitical conflicts, and energy price volatility—data centers have emerged as a pivotal solution for both economic stability and climate progress.

Beyond data centers, critical minerals and climate adaptation strategies also took center stage. Discussions on resilience and distributed energy resources further highlighted the multifaceted challenges and opportunities in the climate tech sector.

Spotlight on Distributed Energy and Virtual Power Plants

I moderated a technical panel on distributed energy resources and virtual power plants, which inevitably intersected with themes of data center energy management and strategies for handling AI-driven load growth. The conversation underscored the need for innovative solutions to balance energy demand with sustainability goals.

Heatmap House: Contrarian Investments and Geoengineering Debates

At Heatmap House, a day of discussions and roundtables with leading climate thinkers, one investor revealed a contrarian bet—backing a lab-grown meat startup. Meanwhile, my colleague Robinson Meyer hosted two back-to-back conversations on solar radiation management, a controversial geoengineering approach that proposes using aerosolized chemicals to reflect sunlight away from Earth.

The first discussion featured the CEO of Stardust Solutions, a private company actively developing this technology. The second conversation included an advocate for research into solar engineering, though they emphasized that commercial deployment is not imminent.

Three Key Announcements from Climate Week 2025

With hundreds of events taking place across San Francisco, it’s challenging to capture the full essence of the conference. However, three notable developments stood out, particularly in the realms of critical minerals and data center infrastructure:

Atana Elements Secures $27.5 Million Seed Round

At a Climate Week event, Atana Elements CEO Thomas Wilson announced that the critical minerals exploration startup has closed its seed funding round, totaling $27.5 million, as confirmed by an SEC filing. The round included participation from Earthshot Ventures, Lowercarbon Capital, and Hitachi Ventures.

Atana Elements officially spun out of Lilac Solutions in 2024, though the transition was conducted stealthily. While Lilac focuses on commercializing a novel lithium extraction technology from saltwater brines, Atana is dedicated to the upstream mineral discovery process. Its scope extends beyond lithium to include other "flowing" critical minerals dissolved in brines, such as helium and hydrogen.

Amazon Announces $10 Billion Investment in Data Centers

Amazon made a significant commitment to data center infrastructure with the announcement of a $10 billion investment aimed at accelerating the deployment of new facilities. The initiative is part of the company’s broader strategy to meet the surging energy demands driven by AI and cloud computing.

Microsoft Partners with GE Vernova for Grid Modernization

Microsoft announced a strategic partnership with GE Vernova to modernize the electrical grid, with a focus on integrating renewable energy sources and improving grid resilience. The collaboration aims to address the challenges posed by AI-driven energy consumption while advancing sustainability goals.