Despite global warming being agreed upon by climatologists for several decades, not all world leaders are convinced of the disastrous possible consequences of this phenomenon. Last year, at the Copenhagen climate summit, national leaders failed to come up with a legally binding agreement to reduce greenhouse gas emissions. Conflicts of national interest prevented them from thinking globally, whereas global warming knows no national boundaries, and global thinking is absolutely needed to solve the problem. Greenhouse gases, as well as other gaseous pollutants, move from one place to another in the earth's atmosphere. Carbon dioxide molecules from a forest burning in Sumatra and Kalimantan may reach Malaysia's and Singapore's air in the same day. Sulfur dioxides from power plants and factories in the US result in acid deposition in eastern Canada. Thousands of lak...