Multiple activities explore and explain why plants and animals need air to survive.

In this activity, students create molecule models using marshmallows to understand and explain how smog forms.

Article reports on the problem of extreme smog in many cities in China and various innovations that are being developed to help deal with the problem. Includes video.

In this activity from "The Friends of Auntie Litter", (www.auntielitter.org), air pollution and harmful emissions, such as smog, will be explored. Students will also create a leaf rubbing. This is one activity from the "Take Pride...

A resource site for information on rules and regulations around vehicle safety inspection and emissions testing in Texas. Contains links to forms and requirements, what to do if your vehicle fails a test, and what the inspection and test...

A short discussion of several different types of pollution and of the harm that it can do to the Earth. Includes a two-question reading-comprehension quiz.

Use national park webcams to determine how regional haze forms and reduces visibility. You can also explore the differences between smog and haze to determine some of the negative economic impacts regional haze can create.

If you live in a big city or urban area it is hard to see many stars at night. In most urban areas only the most brilliant stars, planets and the moon can be seen. This is because of something called light pollution which is the...

This resource focuses on current events of this environmental group that was founded in 1969 to prevent air pollution.

Trace the advance of the environmental movement from 1948 through the 1980s. Read about the legislation promoting a healthy environment passed under both Democratic and Republican presidents.

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...

An online presentation of NOVA's program Dimming the Sun. You can read a transcript of the show, read an essay on the effect of contrails on global warming, and view slideshows tracing a timeline of climate change and new technologies...

A slideshow and a short quiz on the different types of renewable energy sources.