heat waves

Heat waves, air pollution and extreme weather are making people sick and, increasingly, killing people. A key report by global physicians says fossil fuels are to blame.

As cities weather the first blasts of excessive summer heat, officials weigh the benefits of opening cooling centers and spray parks against the risks of letting people gather in public spaces.

It is bringing dangerous, record-breaking temperatures to the Central and Eastern states.

The ecosystem has collapsed for 29 percent of the 3,863 reefs in the giant coral reef system, according to new research. Scientists are learning which corals are the "winners" and "losers."

Unfortunately, we are failing in the goal to make our children's world better than our own — and those who deny it won't have to see the consequences of their choices, says blogger Marcelo Gleiser.