Editor's note: If you are planning to use the news story that this lesson plan is based on for a homework ... for the effects of oil spills on the ecological balance. Direct them to sites below ...

Ecological footprint is a method of gauging humans’ dependence on natural resources by calculating how much of the environment is needed to sustain a particular lifestyle. In other words ...

The Ecological Footprint adds up all the ecological services people demand that compete for space. It includes the biologically productive area (or biocapacity) needed for crops, grazing land, ...

Humanity is currently using 1.5 Earths. Everybody knows that. Our ecological footprint is unsustainable, and if we don't do something about it, we'll soon find ourselves in a world of hurt. But, ...

For example, urban systems accumulate a lot of human-made materials, some of which have large ecological footprints and will ultimately leave a legacy. Bain cites the example of lead, which has ...

Important though the ecological footprint is, the way it is calculated means the estimate that Saanich’s ­ecological footprint is equivalent to four planets is an underestimate. That is because ...

Editor's note: If you are planning to use the news story that this lesson plan is based on for a homework ... for the effects of oil spills on the ecological balance. Direct them to sites below ...