the most notorious was 252 million years ago; it began when carbon warmed the planet by five degrees, accelerated when that warming triggered the release of methane in the arctic, and ended with 97 percent of all life on earth dead.”
the most notorious was 252 million years ago; it began when carbon warmed the planet by five degrees, accelerated when that warming triggered the release of methane in the arctic, and ended with 97 percent of all life on earth dead.”
earth:55
the last continental glaciation ended 10,000 years ago.