Here’s a short paper I wrote a few month’s ago. It is entirely unjustified to assume that it is possible to “displace” fossil fuels using biofuels, or offsetting carbon emissions by paying for a renewable energy project. Sorry, the oil will not magically stay in the ground! If you don’t buy it, someone else probably will.
Please read “The Displacement Fallacy” (pdf) – it’s only one side.