Climate change: a change in global or regional climate patterns, in particular a change apparent from the mid to late 20th century onwards and attributed largely to the increased levels of atmospheric carbon dioxide produced by the use of f

Deforestation: the action of clearing a wide area of trees.

Melting: becoming liquefied by heat.

Air pollution: the presence in or introduction into the air of a substance which has harmful or poisonous effects.

Frozen: (of a liquid) having turned into ice as a result of extreme cold.

atmosphere: the envelope of gases surrounding the earth or another planet.

Protected area: a clearly defined geographical space, recognised, dedicated and managed, through legal or other effective means, to achieve the long term conservation of nature.

Global warming: a gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants.

Overfishing: deplete the stock of fish in (a body of water) by too much fishing.

Acid rain: rainfall made sufficiently acidic by atmospheric pollution that it causes environmental harm, typically to forests and lakes. The main cause is the industrial burning of coal and other fossil fuels, the waste gases from which con

Solid waste: eans any garbage or refuse, sludge from a wastewater treatment plant, water supply treatment plant, or air pollution control facility and other discarded material, resulting from industrial, commercial, mining, and agricultural

Endangered species: a species of animal or plant that is seriously at risk of extinction.

Carbon dioxide: a colorless, odorless gas produced by burning carbon and organic compounds and by respiration. It is naturally present in air (about 0.03 percent) and is absorbed by plants in photosynthesis.