A nice link from Maggie's Farm to this post by Dr. Tim Ball at the Canada Free Press:
Pre-industrial CO2 levels were about the same as today. How and why we are told otherwise?Dr. Ball takes a nice walk through historical weather measurement and shows how the Global Warming ninnies are cherry-picking the data from these records and that the overall truth paints quite the different picture. Cherry-picking is toxic to Science and the people who are doing it are following a political agenda rather than a Scientific one. A little bit about Dr. Ball:
How many failed predictions, discredited assumptions and evidence of incorrect data are required before an idea loses credibility? CO2 is not causing warming or climate change. It is not a toxic substance or a pollutant. Despite this President Elect Obama met with Al Gore on December 9 no doubt to plan a climate change strategy based on these problems. They make any plan to reduce of CO2 completely unnecessary.
Proponents of human induced warming and climate change told us that an increase in CO2 precedes and causes temperature increases. They were wrong. They told us the late 20th century was the warmest on record. They were wrong. They told us, using the infamous �hockey stick� graph, the Medieval Warm Period (MWP) did not exist. They were wrong. They told us global temperatures would increase through 2008 as CO2 increased. They were wrong. They told us Arctic ice would continue to decrease in area through 2008. They were wrong. They told us October 2008 was the second warmest on record. They were wrong. They told us 1998 was the warmest year on record in the US. They were wrong it was 1934. They told us current atmospheric levels of CO2 are the highest on record. They are wrong. They told us pre-industrial atmospheric levels of CO2 were approximately 100 parts per million (ppm) lower than the present 385 ppm. They are wrong. This last is critical because the claim is basic to the argument that humans are causing warming and climate change by increasing the levels of atmospheric CO2 and have throughout the Industrial era. In fact, pre-industrial CO2 levels were about the same as today, but how did they conclude they were lower?
Dr. Tim Ball is a renowned environmental consultant and former climatology professor at the University of Winnipeg.
A little more about Tim Ball- renowned is a word he uses to describe himself in his promotion material. Calgary Herald summary of his qualifications -
http://www.desmogblog.com/tim-ball-vs-dan-johnson-lawsuit-documents