Do the Tories Carbon Offset?

Found out that Iain Dale is saying that basically all the majors parties produce the same ammount of carbon emmsions from the surveys carried out at conference.

Now considering a number of LIbs Dems have already carried out an environemntal survey they possibly did not need to at conference. My results from last november were actually over three times better than Mr Dale's result. Also the Liberal Democrats offset the carbon emmisions produced at their conferences, although many of us do it a lot more, do the Conservatives do the same for their conference? Also an interesting comparison would be what percentage of the various parties actually carbon offsets their emmisions.

Editors note I know today is national poetry day but I could not find a easy way to put this into verse.