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The heating up of the atmosphere is caused by

The main cause of damage to trees is . It has been estimated that more than 60% of forests are affected.

The in the over the South Pole and Australia has raised levels of ultraviolet radiation. This can cause severe sunburn

is one of the emissions from a power plant buring fossil fuels

Winters are becoming milder and wetter and average temperatures year-round are increasing. These are two major signs of

Generators that pollute too much can buy credits or allowances from other companies in a system of

The emitting of harmful gases into the atmosphere is called

The Netherlands is in danger of being flooded due to a rise in

A is the equipment in a power plant which removes sulphur dioxide

a unit which increases or decreases voltage levels