There is a time line across the top, which you can either slide to a particular year to see what the temperature increase would be, or which you can play as an animation, watching the temperature rise as time goes by. The timeline goes from 1999 to 2099. There is a second animation which flies you around the earth to areas of specific interest, where you can click on an icon and read stories of how climate change is already impacting the world.
Fly over to the Artic Circle and watch the temperature increase at an astonishing rate. By 2018 it is approximately 8 or 9 degrees (celsius) warmer than in 1999; by 2043 it is around 12°C warmer and by the end of the animation in 2099 it has increased by an incredible 18°C. The data used to produce the layer are based upon a mid-range IPCC emissions scenario.
A second Climate Change In Our World Google Earth layer has been produced by the British Antartic Survey and demonstrates the retreat of the Antartic ice shelves over the past 50 years.
These are great educational tools for both adults and kids with links to resources offering further information and practical advice.
Incidentally, I took this opportunity to update my version of Google Earth and installed the latest beta (4.3). It's great. It has its own browser so any links you click on open in the Google Earth window and it comes with lots of really interesting layers. Those that I have found of interest in the few moments I have spent madly clicking around are the National Geographic Magazine layer (under Gallery) and The Earth from Above with GoodPlanet (under Global Awareness) but there are loads of others.
After rediscovering my love of Google Earth I downloaded another layer which demonstrates World Oil Consumption using data from the CIA World Factbook. Fascinating. Next, I think I shall play with rising sea levels. I mean that from a purely educational Google Earth perspective, not from an evil-world-domination-I-like-to-think-I-am-God perspective.
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