The Pleistocene is a geologic epoch within the Quaternary Period, spanning roughly 2.58 million to 11,700 years ago, characterized by repeated glacial–interglacial cycles driven by orbital ...
Earth's climate has fluctuated between cold and warm periods for millions of years. During the so-called "lukewarm interglacials"—warm phases between 800,000 and 430,000 years ago—atmospheric CO2 ...
Fun fact: For a state defined by numerous rivers and streams, Maryland is utterly bereft of naturally occurring lakes, thanks to the fact that it was untouched by glaciers during the last ice age.
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