Global Climate Tech Investment Reaches $40.5 Billion in 2025, Led by US and Major Acquisitions
FUSION & ADVANCED NUCLEAR POWER
Global climate tech investment reached $40.5 billion in 2025, marking an 8% increase from the previous year and reversing declines from 2023 and 2024. While the number of deals fell by 18%, investments concentrated on larger, growth-stage companies, highlighted by a $1.6 billion funding round for a state-backed nuclear fusion startup in China. The United States continues to lead in climate tech investment, with European oil giants like Shell and BP actively acquiring climate startups.

Jan 9, 2026, 8:44 AM