Describes the greenhouse effect, the gases that cause it, how itaffects the environment, ways to reduce the emission of greenhouse gases, and alternative, cleaner sources of energy.

Explains what rainforests are and why they are important, how they are being destroyed, the effects of such deforestation on theenvironment, andwhat is being done to halt the destruction.

"Describes the water cycle, following the journey of a raindrop from source to resource, and exploring how water is used in the home and in industry and why it is important to conserve water." --

"What happens when you flip a light switch or press the power button on the TV? Electricity flows to the device and it turns on. Most of us use electrical gadgets all day, every day, without thinking about it. This book follows the journey from source to resource of solar power, one of the most exciting forms of renewable energy today. Young readers will learn how electricity is made and collected directly from the sun and how it reaches us to power...