The second report of the Intergovernmental Panel on Climate Change reveals that global warming impacts are already advancing, and will get worse
From space, climate change is obvious. For more than 20 years satellite images have shown springtime greenery bursting forth earlier and earlier in that season. Thanks to global warming, the growing season is lengthening in many parts of the world. And though this may boost crop yields in some areas, it will have a host of other, less benign impacts, such as transforming the eastern Amazon from rain forest to savanna, according to the second report from the Intergovernmental Panel on Climate Change (IPCC).