Every Earth citizen should have in mind what to do to avoid Earth warming. It is not the case. Some years ago, many countries (most in fact) have signed the Kyoto protocol in order to limit pollution, with a n interesting exception of the US. It seems that NA companies have finally realized they have interest to join the wagon. In recent weeks we saw IBM launching the Project Big Green to help enterprises to limit energy consumption (including IBM first), Apple making decisions to make iPods and MACs “greener”. Now Yahoo is launching Yahoo! Green, a new service to help internet surfers protect environment. Yahoo will provide training and promote tiny daily ecologist behavior.