A new report from researchers at Berkeley, Stanford, and Princeton suggests that humanity has kicked off the sixth extinction level event in our planet's history, even after using extremely ...

For eons, Earth has experienced dramatic shifts, punctuated by five catastrophic mass extinction events that wiped out vast swathes of life. Now, a growing chorus of scientists is sounding the alarm: ...

Humans have wiped out hundreds of species — with many more on the brink or experiencing large declines in population. Some scientists have argued that we have entered a “sixth mass extinction” event ...