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NASA study links changes in Earth's systems to global warming mongabay.com May 14, 2008
The research, based on more than 29,000 data series on observed impacts on Earth's natural systems, links "physical and biological impacts since 1970 with rises in temperatures during that period." "This is the first study to link global temperature data sets, climate model results, and observed changes in a broad range of physical and biological systems to show the link between humans, climate, and impacts," said Cynthia Rosenzweig, lead author of the study and a researcher at NASA's GISS.
The authors concluded that 90 percent of observed changes in physical and biological systems are consistent with warming. Changes in land use such as deforestation and fragmentation were found not to have a significant influence on the observed impacts. "Humans are influencing climate through increasing greenhouse gas emissions," Rosenzweig said. "The warming is causing impacts on physical and biological systems that are now attributable at the global scale and in North America, Europe, and Asia." The authors said more research is needed to better understand the impact of warming trends in Africa, South America, and Australia. Rosenzweig, C., D. Karoly, M. Vicarelli, P. Neofotis, Q. Wu, G. Casassa, A. Menzel, T.L. Root, N. Estrella, B. Seguin, P. Tryjanowski, C. Liu, S. Rawlins, and A. Imeson, 2008: Attributing physical and biological impacts to anthropogenic climate change. Nature, 453, 353-357, doi:10.1038/nature06937. This article is based on a news release from NASA
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