Climate change could "halt and reverse" progress made in human health over the last century. The grim analysis comes from one of the authors of a new report in the New England Journal of Medicine that suggests rising global temperatures could lead to many more deaths than the 250,000 a year the World Health Organization predicted just five years ago. An editorial accompanying the report urges medical professionals to take this report seriously. Its co-author, Dr. Caren Solomon, suggests doctors have a "special responsibility to safeguard health and alleviate suffering," and that mission should include working quickly to curtail greenhouse...