|
1997 was the warmest year on record. Global warming is now happening faster than at any time in the last 10,000 years, and the 10 warmest years on record have been experienced during the last two decades.
Scientists agree the most likely cause is pollution of the Earth's atmosphere with greenhouse gases such as carbon dioxide from the burning of coal, oil, and gas to produce energy and fuel automobiles. |
Human activities are causing some greenhouse gases, such as carbon dioxide. Whenever we burn fossil fuels, more carbon dioxide is emitted to the atmosphere. Forest destruction and agriculture also release greenhouse gases.
The pacific ocean west of California has warmed by 1.5 degrees Celsius, which has triggered declines of zoo plankton and the disappearance of an estimated 4 million sea birds. |
We still have 70% of the forest that were here in 1600-737 million acres of the forest in the US.
Every year, each person in the U.S. uses paper, lumber and other wood equivalent to one tree, 100 feet tall and 16 inches in diameter.
0ver 90% of drinking water is used for lawn and garden watering, washing machines and it flows down the toilets and drains. |