A stalagmite from an Alpine cave may indicate that global warming is not as unusual as many think.Of course, regular readers of WMD already knew that...it's nice to see the scientific community coming around...
Deposits laid down in the stalagmite have enabled a European team to probe past climates confirming a Medieval Warm Period between AD 800 and 1300.
The warm spell is also indicated in some studies of tree-rings, ice-cores and coral reef growth records.
Writing in Earth and Planetary Science Letters the researchers suggest that global warming is a natural process.
Al Gore, call your office...