Glaciers have been retreating for 20,000 years

If the last glacial maximum occurred about 20,000 years ago (which it did), then glaciers actually started retreating 20,000 years ago (see the image below for an artists impression of the arctic ice cap at that time), not 50 years ago, or 100 years ago, or 200 years ago. This definitely doesn’t mean that anthropogenic [...] http://bit.ly/dela4P