Parts of Greenland were warm enough to <a href="http://www.stanford.edu/~moore/Boon_To_Man.html>grow corn and some grain crops around the time of Erik the Red, when the Little Climate Optimum 900-1300AD had raised average world temperatures by at least 2F higher than today's and southern Greenland's local tempertaure by as much as 7F:

- "At the same time that the Eskimos were moving north, Viking explorers were venturing into Greenland, Vinland, and even the Canadian Arctic. Scandinavian sailors found Iceland in 860, Greenland around 930, and reached the shores of North America by 986.[152] By the turn of the millennium, when the waters south-west of Greenland may have been at least 7deg.F warmers than now, Vikings were regularly visiting Vinland for timber.[153] They were received with great hostility by the natives and eventually abandoned contact, although the last trip may have occurred as late as 1347, when a Greenland ship was blown off course.[154] At the height of the warm period, Greenlanders were growing corn and a few cultivated grain."

The fact is it was warmer a thousand years ago with self-supporting agricultural communites in southern Greenland (near the coasts, anyway) until the climate cooled, the sea ice advanced, the crops died and the ground froze soild, causing the colonies to become extinct by the 14th century. This warming did not also lead to a giant melt of Greenlandic glacier ice that severed the Gulf Stream and plunged Europe into a perpetual Ice Age, like many global warming alarmists are predicting, today.

What's funny about the original "Greener Greenhouse" story is I thought global warming was going to mean more drought and desertification, not more biomass and vegetation. Increased CO2 also has the benefit of increasing a plant's ability to retain moisture and hence resist drought even in a warming environment - but not a lot of people know that. Aren't we glad space technology is disproving global warming predictions every day eg TIROS-N sats showing virtually no atmoshperic warming since 1979 and the French/US Poseidon sat showing no average sea level increase during the 1990s?