There have been a number of environmental changes in that country during the five- year period from the year 1997 to the year 2002.

First, let us look at greenhouse gases, such as carbon dioxide . There was a large decrease in greenhouse gas emissions from 1997 to 2002.

Next , let us examine water pollution.

Here there was a small reduction in water pollution over the five years.

Next, let us look at the use of unleaded petrol. This increased a lot over the five year period.

Next , the use of liquid natural gas (or LNG) in cars . From 1997 to 2002, this rose slightly.

Finally, let us look at the destruction of coral reefs. Over the five- year period there was no change. It remained exactly the same.

The three most important environmental problems facing Egypt today , and possible solutionsA. problems

The three most important environmental problems facing Egypt are the destruction of coral reefs, desertification and air pollution.

Coral reef destruction is mainly caused by oil pollution in the sea. It is also caused by global warming.

Desertification is mainly caused by evaporation of water from soil .Air pollution can be caused by emission of greenhouse gases

B. SolutionsProblem (1): This problem can be solved by preventing ships from emptying their oil tanks into the sea .Global warming can be solved by a reduction in deforestation.

Problem (2): This problem can be solved by irrigating the land and preventing the soil from being eroded.Problem (3): This problem can be solved by a reduction in combustion of fossil fuels.

Global warming is a general increase in world temperatures. It is caused by increased amounts of carbon dioxide around the Earth. Greenhouse gases, mainly carbon dioxide and methane , trap heat above the Earth. They cause gradual warming of the air surrounding the Earth.

The amount of CO2 in the atmosphere is increasing because of the burning of fossil fuels. Tropical forests absorb increase global warming. As a result of global warming ice caps would melt and the sea level would rise. This may cause some parts of the world to flood.

To prevent global warming, we must not destroy tropical forests. We must use less fuel and electricity. We should plant trees everywhere. We should reclaim the desert land. We should also recycle paper and aluminium.