This Week in Science: Farty Cows!

It’s time for “Nerd News,” covering the most important news for your brain. Here’s a quick rundown of . . . “THIS WEEK IN SCIENCE”: Some promising climate news, a team at M.I.T. figured out how to use light to evaporate water without heat, which could be huge for desalinization plants. But perhaps even MORE IMPORTANT, researchers in Australia think it might be possible to significantly reduce our “methane emissions” . . . by just breeding cows to fart less.