The problem of climate change just landed squarely on the desk of the US Supreme Court. Twelve states, led by Massachusetts, plus a handful of cities and non-profit organizations are confronting the Environmental Protection Agency (EPA) on its failure...

Plants apparently do much less than previously thought to counteract global warming, according to a paper to be published in next week’s online edition of Proceedings of the National Academy of Sciences.
The authors, including Bruce Hungat...