A battery-like device that converts chemical energy, from a fuel such as hydrogen or alcohol, directly into electricity through a process of oxidation. Fuel cells can be used to power electric cars, or to provide electricity in off the grid areas.
The problem with clearcutting is pretty clear-cut. This forestry technique, which is commonly defined as cutting all the trees with commercial value in a given area at once, has caused tremendous damage-destroying ecosystems, leaving behind massive waste, and causing erosion. There are more sustainable ways to harvest wood and the nonprofit Forest Stewardship Council (FSC) works with industries and consumers to encourage and certify logging practices that pose less of a threat to the world's rainforests.
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