Global Warming
The gradual increase in the average global temperature
What is global warming?
Gases that radiate energy as heat back to Earth
What are greenhouse gases?
The state of the atmosphere at a specific time and place
What is weather?
Temperate, polar, and tropical zones
What are the three major climate zones?
Resources that never run out, such as solar, water, and wind power
What are renewable resources?
The process in which gases radiate energy as heat back to Earth
What is the greenhouse effect?
Natural fuels that take millions of years to form and are formed from the remains of living things
What are fossil fuels?
The weather at a specific place over a long period of time
What is climate?
A climate zone that has temperatures lower than temperatures in the tropical zone and is between the tropical and polar zones
What is a temperate climate zone?
An international agreement to reduce the emission of greenhouse gases
What is the Kyoto Protocol?
A mass removal of trees
What is deforestation?
The angular distance in degrees north and south of the equator
What is latitude?
A climate zone at a latitude of 66.5 degrees or higher
What is a polar climate zone?
Something that produces carbon or releases it into the atmosphere
What is a carbon source?
The surface features of a place
What is topography?
A climate zone with an all-year average monthly temperature of at least 18 degrees Celcius (64 degrees Fahrenheit)
What is a tropical climate zone?
Something that removes carbon from the atmosphere
What is a carbon sink?
The movement of water in a certain direction
What is an ocean current?