The floods and fires and storms and droughts that Australia has suffered in the last few years have left no doubt in many Australians' minds about just how much is a stake in a super-heated world.

Jeff Goodell

Categorized in : How World Doubt Australia

In recent years, America's wealthiest man has begun to tackle energy issues in a major way, investing millions in everything from high-capacity batteries to machines that can scrub carbon dioxide out of the air. With a personal fortune of $50 billion, Gates has the resources to give his favorite solutions a major boost.

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The first sign of whether Obama is serious about confronting the climate crisis will be revealed by how he organizes the White House.

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