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Get a snapshot of the impact of your daily lifestyle. Compare how much water is used to make a variety of products so that you can choose to reduce your water footprint. For those that want to find out more, the green, blue and grey water footprint shows the source of water consumed and the volume of fresh water required for assimilation of pollutants.

This is a free, quick and easy carbon footprint calculator. You can calculate for your state, for an individual or a household, and you can see it change as you answer the questions.

Calculate your Ecological Footprint

a variety of simtualtions : carbon footprint, marine scientist tanks, ocean acidification..and more...worth looking at.

The first embedded document is the summary of an ecological footprint assessment my 7th grade students a few years back.  There is also lots of IB Biology resources (mostly from Steven Taylor at i-biology.net)

To reduce our impact on the climate and avert disaster, it's going to take more than switching to high-efficiency light bulbs. But the most effective ways that individuals, policymakers and businesses can reduce our carbon footprint might surprise you. Let's see how much you know about what can be done to fight climate change.

I use this at the beginning of the year. Kids are always surprised that although they do not travel often, they still consume a lot based on lifestyle.