Jeff Bezos pledges $2bln at COP26

Bezos said the Bezos Earth Fund, which he founded last year to execute his $10 billion commitment to fund scientists, activists and non-profit organizations in the fight against climate change, was "eager to participate" to work on restoring natural environments in Africa.

He added Amazon aimed to reach net zero carbon emissions by 2040, powering all of its operations with renewable energy by 2025 and converting its delivery fleet to electric vehicles.

Bezos is one of the world's richest men, with a net worth of more than $191 billion according to Forbes' real-time billionaire index.