Jeff Bezos, Amazon’s CEO and the world’s richest man, pledged $10 billion on Monday to address the impending dangers of the ever-evolving climate crisis. Recently, the big-time business leader has been working towards increasing his philanthropic footprint, first with a $2 billion donation to aiding homeless populations, then with his announcement of the Climate Pledge, which stated that Amazon would reach the goals of the Paris climate agreement 10 years early, and now, with this sizable donation to the Earth’s crippling health.

Under a satellite image of Earth posted to Instagram, Bezos wrote, “Climate change is the biggest threat to our planet. 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. This global initiative will fund scientists, activists, NGOs — any effort that offers a real possibility to help preserve and protect the natural world. We can save Earth. It’s going to take collective action from big companies, small companies, nation states, global organizations, and individuals.”

Facing pressure from employees at Amazon to act against the crisis, Bezos also disclosed that he would start issuing grants this summer.