The fund, launched in February, aims to combat the effects of climate change by issuing grants to scientists, activists and other organisations in their efforts to “preserve and protect the natural world.”

Bezos announced 16 initial recipients of the Earth Fund who will receive $791 million in donations. The top recipients, including The Nature Conservancy, Natural Resources Defense Council, Environmental Defense Fund, World Resources Institute and the World Wildlife Fund, will each receive $100 million.

Bezos said on Instagram that he spent the past several months learning about their work in depth. They’re “working on innovative, ambitious and needle-moving solutions” to climate change, he added.

The $791 million worth of grants issued Monday were “just the beginning” of the Earth Fund’s $10 billion commitment, according to the Amazon CEO.

Many of the grantees are receiving funds for specific projects, while other recipients will re-grant the funds and donate to other nonprofits, an Earth Fund spokesperson told the CNBC.

Below is the full list of Earth Fund recipients and the donations they’ll receive:

• The Climate and Clean Energy Equity Fund, $43 million grant
• ClimateWorks Foundation, $50 million grant
• Dream Corps Green For All, $10 million grant
• Eden Reforestation Projects, $5 million grant
• Energy Foundation, $30 million grant
• Environmental Defense Fund, $100 million grant
• The Hive Fund for Climate and Gender Justice, $43 million grant
• Natural Resources Defense Council, $100 million grant
• The Nature Conservancy, $100 million grant
• NDN Collective, $12 million grant
• Rocky Mountain Institute, $10 million grant
• Salk Institute for Biological Studies, $30 million grant
• The Solutions Project, $43 million grant
• Union of Concerned Scientists, $15 million grant
• World Resources Institute, $100 million grant
• World Wildlife Fund, $100 million grant