Climate Change Charts

A central Greenland ice core shows an interesting temperature record going back about 50,000 years.

histo61-1Well what do you know – there was a “hockey stick” shaped increase in temperatures. But let’s look back a little farther:

histo5-1Around the year 1000 there was a Medieval Warming Period (MWP) followed by a Little Ice Age (LIA). How about even further back:

histo4-1What we see is a cooling trend for about 3,000 years. That little hockey stick leaves us still cooler than average.


In the historical perspective, recent warming is almost invisible.