Global WarmingGlobal Warming

Eleni NouvakiEleni Nouvaki

Antonia VasakouAntonia Vasakou

What is global warmingWhat is global warmingGlobal warming is the raise in the temperature of Global warming is the raise in the temperature of

the atmosphere and the oceans. The the atmosphere and the oceans. The temperature of the planet has increased about temperature of the planet has increased about 0.6 degrees Celsius since late 19th century0.6 degrees Celsius since late 19th century

CausesCausesGlobal warming is caused by either Global warming is caused by either

natural procedures (e.g. solar activity, natural procedures (e.g. solar activity, release of greenhouse gases from release of greenhouse gases from volcanoes) or human activities (e.g. volcanoes) or human activities (e.g. fumes , electric power).fumes , electric power).

How that happensHow that happens

Part of the stratosphere is the ozone layer Part of the stratosphere is the ozone layer which functions like a greenhouse. As it which functions like a greenhouse. As it allows a part of the solar rays to reach the allows a part of the solar rays to reach the Earth, there can be life and Earth, there can be life and evolution,however it prevents some ultra-evolution,however it prevents some ultra-violet rays to reach the Earth. Due to the violet rays to reach the Earth. Due to the harmful gases that are produced by harmful gases that are produced by human activity, the ozone layer gets human activity, the ozone layer gets thinner and so the ultra-violet rays ,which thinner and so the ultra-violet rays ,which were once stopped, can get through it. were once stopped, can get through it.

The gases which come from industrial activity and The gases which come from industrial activity and from cars (fumes), create in the lower part of the from cars (fumes), create in the lower part of the atmosphere a thick layer which doesn’t allow the atmosphere a thick layer which doesn’t allow the rays to return to space, increasing the rays to return to space, increasing the temperature of the Earth and causing changes in temperature of the Earth and causing changes in the climate .the climate .

Greenhouse gasesGreenhouse gases

The most important areThe most important are::

Solutions Solutions

1)1) We should try to reduce We should try to reduce the emission of the the emission of the greenhouse gases, using greenhouse gases, using less our private cars and less our private cars and preferring public means of preferring public means of transport. transport.

2) 2) We can plant more We can plant more trees so that the trees so that the carbon dioxide is carbon dioxide is absorbed by them.absorbed by them.

3) 3) We should reduce the greenhouse effect, We should reduce the greenhouse effect, using renewable sources of energy (e.g. the using renewable sources of energy (e.g. the wind , the sun, and biomass).wind , the sun, and biomass).

the endthe end