Warming gas levels hit ‘troubling milestone’
Posted: June 1, 2012 – 4:06pm
By SETH BORENSTEIN
Before the Industrial Age, levels were around 275 parts per million.
Life evolved on Earth with CO2 levels much higher than at present. The graph below shows in the red circle the tiny change which has occurred over the last 100 years.
It is interesting how climate alarmists share the same distorted view of history as young earth creationists. Just another group of religious fanatics.