New research now supports the infamous “hockey stick†graph that shows temperatures in the Northern Hemisphere beginning to skyrocket around the time of the Industrial Revolution, illustrating the link between human activity and global warming.
New research now supports the infamous “hockey stick†graph that shows temperatures in the Northern Hemisphere beginning to skyrocket around the time of the Industrial Revolution, illustrating the link between human activity and global warming.
When the graph was first developed in 1998, scientists had to rely primarily on tree ring measurements to estimate the temperature in earlier centuries, and the graph is routinely criticized by climate skeptics who question the science it is based on. For the new study, scientists were able to examine many other temperature indicators in the natural record—including coral reef skeletons, ice cores, sea-floor sediment, stalagmites and stalactites—and they reached the same conclusions. The hockey stick stands.
Article Contines:Â http://environment.about.com/b/2008/09/03/new-study-confirms-link-between-industrial-age-and-rapid-global-warming.htm
