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The Polar Regions play a crucial role in balancing global climate – with the poles heating up much faster than the rest of the world. 

Sixty-six million years ago, an asteroid or comet about 10 miles (14 kilometers) wide smashed into Earth. It struck what is now Mexico’s Yucatán Peninsula, which was then lying at the bottom of a shallow sea.

Over the next five years, Nissan Motor Company will put 2 trillion yen ($17.6 billion) toward developing a cheaper, more powerful battery to serve its expanded lineup of electric vehicles, the company announced Monday.

From 50,000 years to 6,000 years ago, many of the world’s largest animals, including such iconic grassland grazers as the woolly mammoth, giant bison, and ancient horses, went extinct.

The Namib Desert in southwestern Africa is considered the oldest desert on Earth. It also gives rise to some of the planet’s tallest dunes.