Human made chemicals that might be damaging the ozone layer. They are nonpoisonous and nonflamable, and they do not corrode metals.
The long-term prevailing weather conditions at a particular place based on records taken.
Name given to the short-term (generally 6-18 months) , periodic change in the location of warm and cold water masses in the Pacific Ocean.
The average temperature at Easth's surface increased during the twentieth century.
Gases that do absoorb and radiate heat.
Requires developed countires to decrease emissions of crabon dioxide and other greenhouse gases by an average of 5 percent below 1990 levels by 2012.
The water in the eastern pacific ocean is cooler than ususal.
The distance from the equator measured in degrees north or south of the equator
Thinning of stratospheric ozone that occurs over the poles during the spring.
An area in the startosphere where the ozone is highly concentrated.
Polar stratospheric clouds
When temperatures fall below about -80C, high altitude clouds made of water and nitric acid