Earth's Climate

3. global ________ - gradual reduction in the amount of sunlight reaching the earth's surface
5. greenhouse ______ - water vapour, carbon dioxide, methane, nitrous oxide; good absorbers of longwave radiation
7. _________ radiation - earth receives this in the form of visible light from the sun
8. energy ________ - efforts made to reduce energy consumption
10. energy _________ - use of less energy to provide the same service
12. process by which an increasing number of people live in urban areas
13. loss of forests due to the removal or clearance of trees in forested areas
15. _________ agreements - contracts signed by two or more countries
19. global ______ change - variation in the global climate
20. sea level ____ - increase in the main height of the sea's surface between high tide and low tide relative to land

1. global ________ - increase in global temperatures over a long period
2. _______ diseases - disease that is transmitted to humans or animals by insects
4. ________ effect - natural process by which gases in the earth's atmosphere trap longwave radiation emitted from the earth's surface, and warms the earth
6. ______ weather events - severe and rare weather phenomenon
9. _______ factors - factors caused by human activities
11. global ________ - decrease in global temperatures over a long period
14. cooler regions on the sun's surface that appear as dark spots
16. _______ greenhouse effect - increase in the concentration of greenhouse gases in the atmosphere leading to rise in global temperatures
17. production of goods and services within a country
18. practice of cultivating land, producing crops and raising livestock