Nothing unnatural about climate change
Re: Weather has definitely changed, Free Press, January 6.
Glaciation periods can last from 20,000 to 100,000 years; interglaciation periodsaare of a much shorter duration – 10,000 to 20,000 years.
As little as 12,000 years ago, two kilometers of ice sat right here where we live. This ice sheet covered all of Canada, part of the U.S., Europe, and Asia. Most of that ice was gone in 12,000 to 14,000 years. What remains is in the high northern and southern latitudes and will continue to melt at an accelerated rate. In simple terms, Mr. Loughery, less ice to reflect the heat into space equates to a warmer planet.
Environmentalists use 450,000 years ago as a benchmark to start and advance to the present in an attempt to give credibility of the hypothesis of anthropological forcing causing climate change. To help you understand the significance of 450,000 years to environmentalists, it is the lowest CO2 count in 350 million years (average count over that time frame is 12 to 1,500 ppm).
Extensive glaciations began approximately 60 million years ago, sequencing CO2 into the earth, gradually lowering the CO2 level until the flatline of 800,000 to 450,000 years, at which point the ppm count began to increase as the earth released its sequenced CO2. Shorter duration of glaciations, coupled with loner interglaciation, is speculated to be the cause of this process.
The rapid climate change you speak of due to the use of fossil fuels over the last 150 years comes from Mr. Mann’s hockey-stick graph. Mr. Mann’s work has never been validated as he will not allow the scientific community access to work that led to his conclusions. The IPCC also refused to have their work peer-reviewed to ascertain its validity, consequently information pulled from their files at East Anglia University provided that had no regard for science, or the world as a whole, and lied with regard to the causes of climate change.
In January 2010, Mr. Andrew Weaver, one of the most respected and prominent scientists within the IPCC, left them in disgust at the disclosure of this information.
When giving his assessment of the impact the 2010 Winter Games had on climate change, David Suzuki made this statement “during the warming phase,” which alludes to a natural phenomenon.
Dr. Suzuki is a very intelligent man as well as a dynamic speaker and knows precisely the meaning and context of every word he speaks. With that statement coming from Canada’s leading environmentalist there should be no doubt remaining in the minds of the environmental movement about the cause of climate change. Natural phenomenon.