| A | B |
|---|
| Climate | the long-term prevailing weather conditions at a particular place |
| Latitude | distance measured from equator in degrees |
| El Nino | weather conditions when the Pacific Ocean near the equator is warmer than usual |
| La Nina | weather conditions when the Pacific Ocean near the equator is cooler than usual |
| Ozone layer | area in the stratosphere where ozone is highly concentrated |
| Chlorofluorocarbons | human-made chemicals that damage the ozone layer |
| Greenhouse gases | gases in the atmosphere that absorb radiation from the sun |
| Global Warming | the gradual increase in the Earth's surface average temperature |
| Kyoto Protocol | global treaty from 1990s to reduce global greenhouse gas emissions |
| Urban | land that is mostly covered in buildings (aka city) |
| Rural | land that is mostly open space |
| Wilderness | area of land free from exploitation |
| Urbanization | movement of people from rural areas to cities |
| Heat Island | elevated temperature of a city due to absorption of heat |
| Overgrazing | overuse of land for animal consumption |
| Deforestation | removal of natural trees from forests |
| Reforestation | planting of trees to establish new forests |
| Prevailing Winds | winds that blow predominately in one direction throughout the year |
