So far we assumed that CO2 will stabilise in the air at 500 ppm (at the moment, in 2006, we have 380 ppm). Is 500 ppm realistic? Now you can start to be a climate modeller. Choose, for example, the following setup: "Regional climate map" at the top left. Please note that the climate changes depend on the months of the year. You can press the "MO" button in order to let the months rotate. At the top right you can choose the atmospheric CO2. The graph gives you information about the stabilisation level (here 500 ppm in 2125) and about the sources (fossil fuel, red; landuse change, orange) and sinks (ocean, blue; biosphere, green). Choose the temperature plot bottom left and the emission per population plot bottom right.
You see now that the world will be on average 1.9 degrees warmer in 2100, but only if we go reduce CO2 emissions immediately. |