The juvenile whale was seen swimming in a clockwise circle, making unusual noises and trailing two buoys. A team of wildlife experts had to move fast, but with plenty of patience, to save its life.

The cooling in the Pacific Ocean has gone on for three years. Its end is usually good news for the U.S. and other parts of the world, including drought-stricken northeast Africa, scientists said.

Federal forecasters expect more hurricanes than usual this year. Climate change is driving larger, more destructive storms. This is the seventh year in a row with an above-average forecast.

Federal forecasters expect more hurricanes than usual this year. Climate change is driving larger, more destructive storms. This is the seventh year in a row with an above-average forecast.

The amount of carbon dioxide in Earth's atmosphere reached 419 parts per million in May, its highest level in more than four million years, according to NOAA. Fossil fuel use is driving the increase.