How Do We Predict The Climate--100,000 Years Ago?
Since the only ice age that occurred during human existence ended 10,000 to 12,000 years ago, how can we know today that several major ice ages occurred during earth's history? How do we know how much the temperature changed or what the carbon dioxide content…
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Geology
Finding Ice In The Rocks--Evidence Of Earth's Ice Ages
In the late 1700s, geologists began trying to determine how huge boulders of granite weighing several tons…
General Science
Serendipity In Science
Most scientists accept the notion that serendipity plays a major role in their work. Too many discoveries have…
Geology
What Causes Ice Ages....Or Global Warming?
We know from the rock record and cores taken from polar ice caps that periods of global cooling (ice ages, or…
Biology
Why Aren't Mice More Like Us?
The sequence of the human genome was published two years ago, and recently, the sequence of the mouse genome…