Google have launched a new climate simulator. This could be a great tool.
Google Earth launches climate simulator [Guardian]
In collaboration with the Danish government and others, we are launching a series of Google Earth layers and tours to allow you to explore the potential impacts of climate change on our planet and the solutions for managing it. Working with data from the Intergovernmental Panel on Climate Change (IPCC), we show on Google Earth the range of expected temperature and precipitation changes under different global emissions scenarios that could occur throughout the century.