But I had to check. You don't actually believe this do you?

Your assertion is laughably wrong.

Rainforests can easily sequester ~5000 tons of CO2/acre, or more. Agriculture is a very significant contribution to greenhouse gasses - 12.5% - even before considering the land use (from forest sequestration to industrial farming - which is responsible for another 10% of the annual greenhouse gas contributions).

Biofuels studies have shown that it would take up to 3 centuries for biofuels production on an acre that was once forest to "pay back" the carbon that was released in converting that forest into farmland.

As far as environmental concerns go: Forests are good, agriculture is bad... and your assertion is VERY wrong.

;)