“ Earth and Venus are exactly the same size. They have exactly the same amount of Carbon. On Earth, most of the Carbon is in the ground. On Venus, most of it is in the atmosphere. The difference is, our temperature in 59° on average, on Venus it’s 855° — This is relevant to our current strategy of taking as much Carbon out of the ground as quickly as possible and putting it in the atmosphere.
— Al Gore - http://www.ted.com/talks/view/id/243