The great continental ice sheets were melting very fast in the time of Glacial Lake Missoula, shedding great torrents of meltwater every summer, raising sea level an average of approximately 100 ...

There is considerable geological evidence for an extensive glaciation some 600 million years ago. Its end caused an alteration of climate that made possible the proliferation of animal life in ...

Earth’s climate always followed a natural rhythm that cycled through periods of warmth and cold over tens of thousands of years. These shifts were driven by subtle changes in the planet’s ...

Following the end of the last Ice Age, around 10,000 years ago, the levels of the North Sea began to rise as waters formerly locked up in great ice sheets melted. Sometime after about 8200 BC the ...