4. The Evidence The Keeling Curve "We can be very confident that the net effect of human activity since 1750 has been one of warming," Dr Susan Soloman co-lead author of the IPCC report 2007 “ It (the IPCC) is an unequivocal series of evidence [showing that] fossil fuel burning and land use change are affecting the climate on our planet." commented Achim Steiner from the UNEP
5. Who’s to blame? And Why? Greenhouse gas (carbon dioxide, methane, nitrous oxide) emissions
8. The Impacts The Intergovernmental Panel on Climate Change predicts that temperatures are most likely to rise by 1.8C-4C by 2100. But the possible range is much greater; 1.1C-6.4C. The maps above show how a range of three different scenarios will affect different parts of the planet.