Learn about the properties of the thin layer of gas that surrounds the Earth. Understand the mixture of gases that make up the atmosphere as well as the different layers. Also explained are issues that affect the atmosphere like the...

Sixteen essential questions lead student learning about Earth's atmosphere and global warming as they have to do with global climate change.

Welcome to Planet Ark's daily Reuters World Environment News - the most comprehensive source of environmental news on the Net. To read previous news stories, please use the search engine below to find stories relating to any...

Students are introduced to the concept of air quality by investigating the composition, properties, atmospheric layers and everyday importance of air. They explore the sources and effects of visible and invisible air pollution. By...