CO2 causes hurricanes?: ‘Over 7 years after Katrina, another major hurricane almost struck U.S.; back when CO2 was ‘safe’ in 1933, 2 major hurricanes hit U.S. in a week 1933′
2012: 'It has been more than seven years since a major hurricane struck the US, the longest such period since the Civil War. In 1933, the US was hit by two major hurricanes a week apart. CO2 was well below Hansen's safe level of 350 PPM at the time'