Microsoft founder Bill Gates attends a dinner hosted by US President Donald Trump with tech leaders in the State Dining Room of the White House in Washington, DC, on September 4, 2025

Microsoft founder Bill Gates attends a dinner hosted by US President Donald Trump with tech leaders in the State Dining Room of the White House in Washington, DC, on September 4, 2025.

Climate change "will not lead to humanity's demise," billionaire philanthropist Bill Gates has said in a long memo in which he argued that tackling global disease and poverty will help prepare the planet's poorest for a warming world.

The missive was seen as a pivot by the 70-year-old Microsoft co-founder, a major backer of green technologies through his Breakthrough Energy organization, and comes days ahead of the COP30 climate summit in Brazil, whose leadership Gates praised for placing climate adaptation and human development high on the agenda.

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