Jeff Bezos will commit $10 billion to fund scientists, activists, nonprofits and other groups fighting to protect the environment and counter the effects of climate change.

Mr. Bezos said “Climate change is the biggest threat to our planet,” he wrote. “I want to work alongside others both to amplify known ways and to explore new ways of fighting the devastating impact of climate change on this planet we all share.”

“Amazon is proud to be an early adopter of green hydrogen given its potential to decarbonise hard-to-abate sectors like long-haul trucking, steel manufacturing, aviation, and ocean shipping,” said Kara Hurst, vice president of Worldwide Sustainability at Amazon. “We are relentless in our pursuit to meet our Climate Pledge commitment to be net-zero carbon across our operations by 2040 and believe that scaling the supply and demand for green hydrogen, such as through this agreement with Plug Power, will play a key role in helping us achieve our goals.”

Transitioning to renewable energy is one of the highest-impact ways to immediately lower emissions. Amazon is the world’s largest corporate purchaser of renewable energy and is on a path to powering our operations with 100% renewable energy by 2025—five years ahead of our original target of 2030.