Causes, consequences long-term and medium-term solutions for the climate change.

2. CAUSES

4. CARBON DIOXIDE EMISSIONS CARBON DIOXIDE is ( chemical formula : CO 2 ) is a chemical compound composed of two oxygen atoms covalently bonded to a single carbon atom. It is a gas at standard temperature and pressure .

6. CENTRAL HEATING A central-heating system provides warmth to the whole interior of a building (or portion of a building) from one point to multiple rooms.

7. Littering can be considered the most visible form of solid waste pollution .The act of littering for the most part constitutes disposing of waste inappropriately, typically in public places. LITTERING

8. CONSEQUENCES

9. GLOBAL WARMING Global warming is the increase in the average temperature of the Earth 's near-surface air and oceans since the mid-20th century and its projected continuation.

10. OZONE LAYER HOLE Ozone depletion describes two distinct, but related observations: a slow, steady decline of about 4 percent per decade in the total volume of ozone in the Earth´s stratosphere.

11. Greenhouse effect The greenhouse effect is the rise in temperature that the Earth experiences because certain gases in the atmosphere (water vapor, carbon dioxide, nitrous oxide, and methane, for example) trap energy from the sun.

12. Desertification D esertification is the degradation of land in arid and drysu-humid areas, resulting primarily from natural activities and influenced by climaticvariations

13. Poles melting Melting of continental Antarctic ice could contribute to global sea level rise.

14. “Solutions”

15. Recycling

16. Renewable energies

17. ECOLOGICALLY-FRIENDLY LAWS

18. INTERNATIONAL PROTOCOLS

19. ... and the star

20. EDUCATION

21. ...AND A GOAL...