In theory, we could get all of the nutrients we need from our well-balanced diets, if only we ingested a wide array of fruits and vegetables — with an emphasis on dark, leafy greens — lean protein, and lots of fiber every day. In reality, we just don’t.

Far from snowy peaks, you can ski and snowboard any time of year in, of all places, a shopping mall in Dubai. If you care two wits about the environment, though, "the amount of energy this climate-defying folly consumes" will likely keep you away. If you live near real ski country, of course, you know that hardcore downhill enthusiasts will stretch the season until May or so, wishing they could do it all year.