August 22, 2019, 8:06 a.m.
That upbeat mood can last as long as 4 hours.
August 21, 2019, 5:33 p.m.
The Amazon rainforest fires have been burning for 3 weeks, and some are wondering why Brazil's crisis isn't getting more attention.
August 20, 2019, 8:27 a.m.
Environmental advocates worry that mining could permanently impact the swamp.
August 19, 2019, 10:51 a.m.
Hundreds of hikers battle altitude sickness and frostbite as they wait in line to summit.
August 16, 2019, 10:50 a.m.
July 2019 was the planet's warmest month since record-keeping began in 1880, according to NOAA.
August 14, 2019, 3:46 p.m.
The striking birds are spotted occasionally, but they don't seem to stay for long.
August 14, 2019, 1:30 p.m.
The U.S. is suspending its annual count of honeybee hives, but not because bee declines have improved.
August 13, 2019, 5:03 p.m.
As 'living fossils,' gingko trees hold ancient secrets that may help us prepare for the future, researchers say.
August 9, 2019, 3:03 p.m.
The number is probably much, much lower than you think.