About 55 million years ago, there was a really abrupt warming event, and what happened was a whole bunch of carbon dioxide was released into earth's atmosphere, and it caused a rapid and pretty extreme global warming event.
약 5천5백만 년 전에,  정말 갑자기 따뜻해졌는데 굉장히 많은 이산화탄소가 지구 대기로 방출된 것이었습니다. 빠르고 꽤 극단적인  온난화를 일으켰습니다.