Photo credit: Flickr user Paul Lowry. We know that some of the resources we rely on have the potential to run out, while others are renewed as soon as we use them. We've deemed those resources that ...

In our contemporary society, where energy use and environmental protection raise important global concerns, the terms renewable and sustainable are often used. Although the two words sound alike, they ...

A natural resource is defined as a form of energy and/or matter which is essential for the functioning of organisms, populations and ecosystems. In the case of humans, a natural resource, in his words ...

While all natural resources are created by the environment, some are regenerated much faster than others. We know that some of the resources we rely on have the potential to run out, while others are ...