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 ...

Digital generated image of multiple environmental rectangular cross sections with different types of energy supply. Sustainable city concept. Using data from this survey and a variety of other sources ...

Climate change faces its critical juncture today as the urgent need to exchange fossil fuels with renewable energy sources becomes apparent worldwide. The International Energy Agency (IEA) predicts ...