climate change

2. the cycle of thermonuclear reactions believed to occur in stars, in which carbon nuclei are repeatedly formed and broken down in the conversion of hydrogen into helium.
5. the production and discharge of something, especially gas or radiation.
8. the primary means for governments to communicate internationally the steps they will take to address climate change in their own countries
9. the action of reducing the severity, seriousness, or painfulness of something.
10. the envelope of gases surrounding the earth or another planet.
11. the state of the atmosphere at a place and time as regards heat, dryness, sunshine, wind, rain, etc.
14. energy generated in ways that do not deplete natural resources or harm the environment, especially by avoiding the use of fossil fuels and nuclear power.
15. a slowly moving mass or river of ice formed by the accumulation and compaction of snow on mountains or near the poles.
16. any of the almost spherical concentric regions of matter that make up the earth and its atmosphere, as the lithosphere and hydrosphere.
17. the action of clearing a wide area of trees.
18. the process of turning from liquid into vapor.
19. a biological community of interacting organisms and their physical environment.

1. long-term heating of Earth's surface observed since the pre-industrial period
3. a region with particular prevailing weather conditions.
4. a natural fuel such as coal or gas, formed in the geological past from the remains of living organisms.
6. the action or process of adapting or being adapted.
7. the regions of the surface, atmosphere, and hydrosphere of the earth (or analogous parts of other planets) occupied by living organisms.
12. a prolonged period of abnormally hot weather
13. a colorless, odorless flammable gas which is the main constituent of natural gas. It is the simplest member of the alkane series of hydrocarbons.
16. a gas that contributes to the greenhouse effect