Human Environmental Impact

Pollution and mining for resources have negatively impacted Earth. Non-renewable resources will one day run out. Then what? In this title readers will learn about alternative energy sources such as solar, wind and geothermal energy, and what they can do to positively affect Earth.

Poluarea si exploatarea resurselor au avut un impact negativ asupra Pamantului. Resursele neregenerabile se vor epuiza intr-o zi.