Article

Global climate tech investment in 2025 increased by 8% year-over-year to $40.5 billion, reversing declines seen in 2023 and 2024. Despite an 18% drop in the total number of deals, there was a focus on larger, growth-stage companies.

The largest deal was a $1.6 billion investment in a state-backed nuclear fusion startup in China. The United States remains the top hub for climate tech investment, with European oil majors, including Shell and BP, leading in acquisitions of climate startups.