The Scotsman reports on so-called man made global warming has been reported in the mass media, specifically Volume 1 of US Govt. Fourth National Climate Assessment.
It primarily blames the amount of CO2 in the atmosphere. But studies suggest that CO2 levels were 10-20 times higher in the past. All that coal, gas, oil, limestone and chalk in the ground is there because living beings sequestered CO2 from the atmosphere. And yet life on earth wasn’t destroyed during these past periods of high CO2, which is contrary to the impression that you’d get from such reports. For example, Steven Hawking recently predicted 250-degree temperatures, wind of 100 metres per second and rain in the form of acid, from a relatively modest rise in CO2. Surely if this were true life in the past would have been destroyed?
The warmists want us to believe that CO2 has its hand firmly on the world’s thermostat. However, a 1999 study led by J Petit at Vostok in Antarctica suggests otherwise. Vostok has some of the deepest ice in the world and Petit’s team drilled down and obtained proxy measurements of temperatures and levels of CO2 and methane going back 420,000 years.
The report states that during the start of ice ages “the CO2 decrease lags the temperature decrease by several thousand years”. In other words, the temperature falls hugely while CO2 stays the same, also temperature falls first, then CO2 falls much later.
How can temperatures fall when CO2 stays so high? GEOFF MOORE
Braeface Park Alness, Highland