Four slides attempt to explain global warming. The first mentions that Earth's climate has experienced major changes throughout history, but that scientists believe humans are now changing it. The second explains why this is...

Touching upon energy sources and the causes of pollution, this PowerPoint could be expanded. For example, it describes the greehnouse effect and the problems associated with global warming, but does not indicate that the greenhouse...

The carbon dioxide in our atmosphere and its effect on how heat is contained is summarized here. The flow of heat is explained with details about insulation and conduction. There are diagrams of heat circulation on a global level and...

An extensive investigation of the Earth's climate changes awaits your environmental science classes. This top-notch presentation begins by looking at the history of Earth's climate and then predicts the impact on each major terrestrial...

A series on environmental engineering introduces the class to issues that environmental engineers work to solve. This first lesson focuses on air and land issues, and looks at ways to reduce pollution.

All types of energy are presented here, with neat pictures and labels to illustrate the technology typically used. Ways of harnessing the energy most efficiently are discussed, and good examples provide starters for further research....

A discussion of the interactions between the four spheres of Earth and how they affect weather and climate. The slideshow is divided into two parts. The first deals with interactions between the atmosphere and the hydrosphere and the...

A collection of images which shows the effects of too much carbon in our atmosphere There are also some promising carbon-reducing images as well.