The ice bucket challenge went viral in 2014, partly because it was so much fun to watch videos of celebrities or friends dumping ice water on their heads. Videos of people in the challenge have been watched more than 10 billion times on Facebook - more than once per person on the planet.
From Nicholas Kristof
Wilderness trails constitute a rare space in America marked by economic diversity. Lawyers and construction workers get bitten by the same mosquitoes and sip from the same streams; there are none of the usual signals about socioeconomic status, for most hikers are in shorts and a T-shirt and enveloped by an aroma that would make a skunk queasy.
From Nicholas Kristof
Maybe our best family trip started at Victoria Falls, which drenches you with spray and is so vast that it makes Niagara Falls seem like a backyard creek. Then we rented a car and made our way to Hwange National Park, which was empty of people but crowded with zebras, giraffes, elephants and more.
From Nicholas Kristof
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