The burning of fossil fuels is the biggest contributor to greenhouse gases and, therefore, the biggest contributor to global warming.

One tree can absorb the amount of CO2 released by an average car that’s been driven for 4,000 miles (6,437 km).

Scientists have discovered that carbon dioxide and Antarctic temperature have gone hand-in-hand for 650,000 years!

Eleven out of twelve of the years between 1994 and 2006 were the hottest on record.

Every two seconds, a forest area the size of a football field is destroyed.

Using a screen saver on the computer (based on an LCD monitor) emits 2.5 lb (1.1 kg) of carbon dioxide.

Turning on the lights (based on three 60-watt bulbs in a ceiling fixture kept on for six hours a day) will generate 1.5 lb (680 kg) of carbon dioxide.

Taking a bath uses up to 3.5 lb (1.6 kg) of carbon dioxide!

Riding in a car to school uses 5 lb (2.3 kg) of CO2 (based on driving to school 2.5 miles (4 km) each way in a car that gets 20 miles (32 km) per gallon).

If the Greenland ice sheet melts completely, it will add enough water to raise sea levels all across the world by 21 feet (6.4 m)!

Mayors in over 400 cities across America have signed the U.S. Mayors Climate Protection Agreement to help stop global warming.

A compact fluorescent lightbulb is 75% more energy-efficient than an incandescent bulb.

20% of the world’s electricity comes from waterpower.

To make 14 plastic bags, you’d need the same amount of petroleum that it would take to drive a car one mile (1.6 km).