By JR on Sunday, November 20, 2011
On the threat of trace amounts of CO2: "The end-point of that path looks something like Venus". But that is nonsense. The huge surface temperature of Venus is adiabatic -- the product of the weight of Venus's huge atmosphere. And adiabtics is basic physics so he had to know about that
The keynote speaker was Mark Jaccard, who teaches in the School of Resource and Environmental Management at Simon Fraser University in Vancouver.
Jaccard -- with former vice president Al Gore and colleagues on the Intergovernmental Panel on Climate Change -- won the Nobel Peace Prize in 2007 for helping to raise awareness of global warming.
...Still, at the end of his address, Jaccard faced questions from audience members who clearly were dubious.
One person asked what made Jaccard so sure that global warming was man-made and not a result of natural warming and cooling cycles.
"One hundred and fifty years ago, people were predicting that if we continued to dump these gases into the atmosphere, temperatures would rise, and the increase would be dramatically different from the natural 10,000-year cycles that you're talking about," Jaccard replied. "And that's exactly what's happening.".
...It's not that the earth will warm up, then flatten out and everyone will adapt to that new reality, Jaccard insisted. "The end-point of that path looks something like Venus. It's really hot. At some point, we're going to panic and say we need to do something about that."
Temperature of Venus
Where the Earth has an average surface temperature of 14 degrees Celsius, the average temperature of Venus is 460 degrees Celsius. That is 410 degrees hotter than the hottest deserts on our planet.
...The temperature of Venus is not the only extreme on the planet. The atmosphere is constantly churned by hurricane force winds reaching 360 kph.