And how could they be sure that entire $36 dollars would be going to offsetting their trip? Thirty six dollars may pay for the planting of 5 trees for example, but (like in charity work) 80% of their donation could well go on 'administration' costs. People who may be interested in this kind of thing need to see their money in action, such as in the 'sponsor a goat' programmes. Each donation should (whether at random or calculated) let the person see where their money has gone.

I personally don't see how $36 dollars could offset this amount of carbon anyway, even with the weak pound.

www.phlorum.com