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The environmental challenge for us all: What is our ecological footprint?
1. What is your ecological footprint?
How much land area does it take to support your lifestyle? Take this quiz to find out your Ecological Footprint, discover your biggest areas of resource consumption, and learn what you can do to tread more lightly on the earth.
Another Footprint calculator ... and another
2. The concept of planetary boundaries for your consideration. This is an interesting article discussing the limits that the Earth's physical systems have and the importance not exceeding any tipping point that could destabilize the planet if we "overstrech the springs
3. ...and an article on the impact of China's one child per family policy. An attempt to limit population. Everything has a consequence.