A Consumer's Guide to Sustainable Seafood. Climate Progress. The complete guide to modern day climate change « Climate Progress. By Climate Guest Contributor on April 14, 2010 at 8:27 am "The complete guide to modern day climate change" All the data you need to show that the world is warming According to the IPCC 4th Assessment Report (2007): Warming of the climate system is unequivocal, as is now evident from observations of increases in global average air and ocean temperatures, widespread melting of snow and ice, and rising global average sea level.At continental, regional, and ocean basin scales, numerous long-term changes in climate have been observed.
These include changes in Arctic temperatures and ice, widespread changes in precipitation amounts, ocean salinity, wind patterns and aspects of extreme weather including droughts, heavy precipitation, heat waves and the intensity of tropical cyclones.Paleoclimate information supports the interpretation that the warmth of the last half century is unusual in at least the previous 1300 years.