Carbon credits are making some things strange happen. Today Folio, (Sao Paulo newspaper) tells that mainly Dutch bank Fortis has bought for 34thousand Reais (about US$20,000) carbon credits from a dump in Sao Paulo. As most know, santitary land fills have anarobic "bugs" processing the organic matter (fancy for garbage) into CO2 and CH4 (methane). Well all admit that methan is more effective green house gas than CO2. Also it is obvious that if a molecule of CH4 is burned you get only one molecule of CO2. So the dump has installed "flare pipes" and is buring the methane. Sao Paulo sold 808,450 "carbon credits" (I do not know what units that really is) to Fortis who will sell them on to polluting industry. Article states metane is 21 times more of a greenhouse gas than CO2 (per C atom, I think) so burning each molecule of CH4 allows 20 molecuels of CO2 to be released by the buyer Fortis no doubt already has for these "carbon credits." The dump gas has so much CO2 in it that it is a poor fuel and Sao Paulo does not plan to run small power plant on it as capital cost too great - more profitable just to burn it and sell the carbon credits. It all seems very strange to me but I guess it is OK, not entirely crazy. What do you think?