SitNews - Opinion/Letter: TIME FOR SOME CLIMATE REALISM By Alaska Rep. Carl Gatto

Our climate appears to be once again reversing course and cooling, repeating a cycle that has repeated itself thousands of times in the past. Glaciers advance when the Earth cools, then make up for all that work by retreating when the Earth re-warms. Human activities may have a little impact, but is it good or bad? Worth preventing? No one knows.

So for the time being, let's accept that the Earth's climate has been wide-ranging for five billion years. That's our planet's history, and we are here in spite of (or maybe because of) all those changes.

Thank God for that.

PBS' 'Journey to Planet Earth' gives a dire warning on Earth's oceans

All this is hardly a new warning, meaning it may be dismissed by some skeptics as either reheated Al Gore or overheated panic.