I think global warming is a real and serious problem for all us. Global warming can change the entire earth's climate. To combat this, we can’t do anything now. This is because of the economy. The global economy is now in trouble and the economy of all important countries is in much danger. The g8 Countries are now on the edge of an economic recession, like the recession of 1929: “the big crash”. Only the United States has burnt 700 billions dollars in 5 day . Do you think the countries are in the condition to invest billions dollars now for the global climate?