The goal of "Plant for the Planet" was to plant how many trees in a year?

Aside from saving a natural resource, why should you conserve water?

Which is better, paper or plastic?

With a Smart Meter, you can do what?

The 'Chipko' movement in India gave rise the term 'tree huggers'.

What percentage of the sun's heat is absorbed by the Earth?

Aside from saving a natural resource, why should you conserve water?