Still More on Global Warming

hype7 writes "The Daily Telegraph is running a piece on the world's temperature. Apparently, it was a lot hotter in the middle ages: "A review of more than 240 scientific studies has shown that today's temperatures are neither the warmest over the past millennium, nor are they producing the most extreme weather - in stark contrast to the claims of the environmentalists.""

Comments

*NOT* in stark contrast to the 'claims'

[abalacha]

This article is pretty weak on facts. Consider the following

• No scientists (not the uneducated environmentalists) ever disagreed on the fact that the Earth was much warmer about 1000 years ago. The Viking colonies in Greenland and other well known facts are proofs of this.
• No Scientists are disputing the fact that the rise of CO2 in the atmosphere is pretty drastic in the last 100 years.
• No scientists are disputing the fact that CO2 is a 'greenhouse gas'.
• No scientists are disputing the fact that temperatures across the globe are rising steadily for the past 100 years.

The issue here is *NOT* the fact that the earth was warmer 100 years ago, but the issue *IS* the fact that the Earth is getting warmer for the last 100 years, which seems to be proportional to the CO2 emissions.

There are periods in Earth's history when temperatures dipped and rose quite drastically. Various theories are there trying to explain this phenomenon. But what we need to see now is whether the present rise is caused by external factors or human factors. If the earth can get much warmer in a period of very low atmospheric CO2, what would happen with so much CO2 as we have today.