"The first heat wave of the season has arrived earlier than usual across much of the U.S. Southwest, with dangerously hot conditions that produced triple-digit temperatures on Tuesday. Forecasters say temperatures are likely to top 110 degrees Fahrenheit (43.3 Celsius) in some areas by Thursday."

"More efficient manufacturing, falling battery costs and intense competition are lowering sticker prices for battery-powered models to within striking distance of gasoline cars."

"Human-caused warming has doubled the chances that southern Brazil will experience extreme, multiday downpours like the ones that recently caused disastrous flooding there, a team of scientists said on Monday. The deluges have killed at least 172 people and displaced more than half a million residents from their homes."

"Tens of thousands of children in Afghanistan remain affected by ongoing flash floods, especially in the north and west, the U.N. children’s agency said Monday."

"EPA Administrator Michael Regan this week will face off with House Republicans troubled by his agency’s regulations designed to tackle climate change."

"A battle that ties food aid for needy families with crop subsidies for American farmers may stall efforts to renew a sweeping agricultural policy law, forcing Congress to consider delaying action on the $1.5 trillion proposal until after this fall’s elections."

"Atlanta remains under a state of emergency Monday as it battles disruptions to its water service that began last week, leaving a swath of a major city under boil-water advisories and highlighting the pervasiveness of problems caused by America’s aging infrastructure."

"Mexico is the world’s 11th-largest oil producer. It has been gripped by a deadly heat wave. Now, it’s elected as its president a woman with a rare pedigree: a left-of-center climate scientist with a doctorate in energy engineering named Claudia Sheinbaum."

"Environmental groups are making a new economic argument against coal, the heaviest polluting fossil fuel. Some regulators are listening."