Every time a cow burps or passes gas, a little puff of methane wafts into the atmosphere. Each of those puffs coming out of a cow’s plumbing, added together, can have a big effect on climate because ...

Low clouds have lifted long enough for helicopters to ferry scientists and their gear to a fast-melting glacier on the edge of Antarctica. By Raymond Zhong Records show that Karen Budd-Falen, a top ...