National Academy of Sciences News

U.S. protection of wetlands has expanded and contracted dramatically over the last five years, as Democratic and Republican administrations rewrote Clean Water Act rules to their constituencies’ liking. The lack of high-quality economic analysis has been a recurring theme in …

WASHINGTON — Scientists said on Monday that for the first time, a satellite on a routine global survey identified and measured methane gas escaping from a gas well explosion, a tool that could be important in efforts to curb climate …