"The Earth is Warming! The Earth is Warming!" sounds suspiciously like "The sky is falling! The sky is falling!" sounds suspiciously like "An ice age is coming! An ice age is coming!"

Correlation is not proof of Causation. Nor is the breast beating and self-love strutted about by Al Gore at Bali going to change that.

AGW is political science, not hard science.

Scott, Durham, NC, USA

The elephant in the room is human population growth. How is it that practically everyone ignores it?

David, Bromley,

Why do people think there's oil under the arctic sea? It's over 3 km deep there. Oil is found under the Continential shelf, not the deep ocean.

Revealing title: we "must", presumably because the believers say so. But I don't like to be told that I "must", or not, do something, just because someone who thinks he/she knows says so.

Bzw, last month I scrapped my old faithful bicycle. Just estimated that it and I have done about 40 thousand miles together over the past 15 years. Just to be clear: those miles were not done in my car.

Google on "earthshine project" and follow this link:
http://www.bbso.njit.edu/science_may28.html. The albedo (reflectivity) of the Earth has increased by more than 5% since 1998, and rising , because of changing cloud cover. You don't need to be a rocket scientist to know that that means that the Earth is going to cool a bit. A changing albedo is not included in any climate model used by the IPCC.

It's the climate maffia that peddles the half-truths.

Ed Zuiderwijk (PhD physics), Cambridge, UK

The major offendor is the cement industry which produces one ton of CO2 for every ton of cement. This means that in Europe alone 200 million tons of CO2 are generated by the cement industry.
www.ecocem.ie

Vivienne O'Riain, Paris, France

Typical academic response. Now there is proof of global cooling can we deal with the fact that A - climate change is a part of the way things are B - the powers that be want to use climate change to control and tax people because that is all politicians ever do
c - www dot climate police dot com
d - ALEX JONES ENDGAME http://video.google.com/videoplay?docid=1070329053600562261
E - Since the mid-19th century, the mean global temperature has increased by 0.7 degrees Celsius. This slight warming is not unusual, and lies well within the range of natural variation. Carbon dioxide continues to build in the atmosphere, but the mean planetary temperature hasn't increased significantly for nearly nine years. Antarctica is getting colder. Neither the intensity nor the frequency of hurricanes has increased. The 2007 season was the third-quietest since 1966. In 2006 not a single hurricane made landfall in the U.S.

Full Article: http://earthchangesmedia.com/secure/3247.326/article-9162519947.php

Peter Watson, Shaftesbury, Dorset

"The evidence for human-driven climate change is overwhelming"

Is this why there has been no increase in temperature since 2001?http://www.newstatesman.com/200712190004
"Global warming has, temporarily or permanently, ceased.
Temperatures across the world are not increasing as they should according to the fundamental theory behind global warming – the greenhouse effect. Something else is happening and it is vital that we find out what or else we may spend hundreds of billions of pounds needlessly. For the past decade the world has not warmed. Global warming has stopped.
It’s not a viewpoint or a sceptic’s inaccuracy. It’s an observational fact.

The UK must have the wrong CO2, since 1659, the hottest Central England temperatures from Hadley are:
winter - 1869, followed by 1834
spring - 1893 followed by 1945
summer - 1976 followed by 1826.
autumn - at last success for global warming, 2006, but followed by 1730, 1731 and 1729. This year 2007 ranks at 42 out of 349

Harbinger, Newquay, Uk

Now that the Arctic ice is melting, we need to open the Arctic up to oil drilling. We need cheaper oil close to home. And because there are no trees there, we will not have to worry about the tree huggers.

Joseph, Bristol, CT

The evidence is not overwhelming and whether or not there is even consensus is debatable. http://epw.senate.gov/public/index.cfm?FuseAction=Minority.SenateReport

Tom, Billings, USA