Cities without trees are "heat islands." 100 million additional mature trees in U.S. cities would save $4 billion per year in energy costs.

A windbreaker can lower home heating bills up to 30%

Trees remove air pollution by lowering air temperature, through respiration, and by retaining particulates.

Trees can improve the property value of your home by 15% or more.

In less than 100 years over half of the forest has now been cut and burned, leaving whole areas of the earth bare and unprotected, rendering entire regions lifeless.

Four days of global military spending, which is estimated to run about $8 billion, could finance a five-year action plan to protect the world's tropical rain forest.

Every year we dispose of 204 million tons of leaves and grass clippings, which could be composted to conserve landfills.

Every year 900,000,000 trees are cut down to provide raw materials for American paper and pulp mills.

Trees support many generations of birds and other wildlife and improve community pride.

Shade trees planted east and west of your home can cut cooling cost 15% to 35%.

An acre of water equals about 326,000 gallons, or enough water to cover an acre of land about the size of a football field.

The water from your aquarium can be particularly good for watering plants; it's rich in nitrogen and phosphorus.

The earth's water consists of:
92% Salt Water
2.8% Fresh Water
0.6% Ground Water
0.01% Lakes & Streams
2.2% Glaciers & Ice Caps
0.001% Water Vapor

Water is the most common substance on earth covering 70% of the earth's surface.

The United States uses 100 billion gallons of water for irrigation of crops per day.

Humans take in over 16,000 gallons of water during their lifetimes, with an average of 2.5 quarts per day.

Today 40% of our waters are still too polluted for fishing and swimming.