Earth's Interacting Spheres
Climate change is a complicated process that stems from complex interactions between Earth's atmosphere, geosphere, hydrosphere, and biosphere. Changes in climate result in a cascade of changes in the Earth system, with consequences for human societies. Evidence for the effects of global climate change is easily seen in Earth's sensitive Arctic ecosystems. In the Arctic, permafrost is melting, precipitation and temperatures are changing, erosion is increasing, glaciers are receding, sea levels are rising - and all of this is affecting the populations of animals and plants that live there. The following video explains all of the complex interactions that result from the consequences of climate change in the Arctic, and details how it affects each of Earth's spheres.
Source: Teachers' Domain, Changing Arctic Landscape, published January 17, 2008, retrieved on January 20, 2010, http://www.teachersdomain.org/resource/ipy07.sci.ess.earthsys.arcticland/
Last modified: Wednesday, 18 April 2012, 8:46 AM