It explains the sources of water pollution, its effects and the ways to prevent and control water pollution.

This video provides an introduction to biodiversity and discusses some of the human impacts on it. It covers topics such as overfishing, fish farming, introduction of new species, eutrophication, and programs aimed at maintaining or...

Real World Science : The Science of Climate Change
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This program begins by explaining how scientists have learned that Earth’s climate has changed many times over billions of years and that Earth’s climate is...

Biodiversity is the variety of life. There are thought to be 8.7 million species on planet Earth. And, as we saw in this video, biodiversity is of utmost importance to humans. The loss of one key species can have a detrimental impact on...

This video discusses the impact of human activities on the Earth's environment. It covers topics such as deforestation, air pollution, depletion of the ozone layer, and global climate change. The video also highlights the ways...