DNA of trees, plants and insects including
butterflies and spiders from
beneath the southern Greenland glacier was
estimated to date to 450,000 to
900,000 years ago, according to the remnants
retrieved from this long-vanished
The article also points out that temperatures were on average 9 degrees Fahrenheit higher than today during the period between ice ages 116,000 - 130,000 years ago.
Another paper from the premier journal Science, reports that ice cores from Antarctica, providing a record of greenhouse gases in the atmosphere going back 800,000 years, show a variation of 27 degrees Fahrenheit over this time span. In the previous ice age, temperatures were 18 degrees colder than today. At other times, temperatures have been up to 9 degrees higher.
Global warming alarmists are worried about a 1º F temperature rise over the past 100 years. Given that temperatures have historically sometimes been much higher, and at other times much lower on the earth, is it time to panic about a one degree rise?
Climate change is a real phenomenon. Climate is always changing. The ice cores in Greenland and Antarctica prove this. Change is in the nature of climate, even in times when humans did not even exist, let alone burn any fossil fuels.