It's high summer, yes, but blink and soon it will be fall, and trees will turn red, brown, beige, yellow, pale green and gold. But not cars. Cars may be making the Earth warmer, but their colors, I notice, have turned wintry.
Bill Stone is a maverick cave explorer who has plumbed Earth's deepest abysses. In this talk, he explains what it's like to descend into the deepest caves in complete darkness for days on end — and why he keeps doing it.
Explorer Ben Saunders wants you to go outside. Not because it's always pleasant and happy, but because that's where the meat of life is, "the juice that we can suck out of our hours and days." In 2004, Saunders skied solo to the North Pole. Saunders' next outdoor excursion? To try to be the first in the world to walk from the coast of Antarctica to the South Pole and back again.