Calentamiento Global En Ingles

The chemical composition of the atmosphere is changingthrough the build up of greenhouse gases--primarily carbon dioxide, methane, and nitrous oxide. The heat trapping property of these gases is undisputed. Energy from the sun drives the earth's weather and climate, and heats the earth's surface; in turn,the earth radiates energy back into space. Atmospheric greenhouse gases (water vapor, carbon dioxide, and other gases) trap some of the outgoing energy, retaining heat somewhat like the glass panels of a greenhouse. However, problems may arise when the atmospheric concentration of greenhouse gases inceases.

What causes global warming?

The dioxide of carbon, the chlorfluorocarbons, the methane and the nitrous oxide are pollutant gases that are accumulated in the atmosphere and catch the heat of the Sun, causing warming of the planet. Though the oceans and the plants capture big quantities of dioxide of carbon, his capacity has met exceeded by the emission. This wants to say that, every year, there is increased the atmospheric quantity accumulated of gases that produce the greenhouse effect, hastening this way the global warming.

Consequences:

-Rising sea levels will have a devastating impact on people.

-Humans and other species on the planet are already suffering from climatic changes.

-The annual costs of the effects of global warming could go up to $300 billion (US Dollars) fifty years from now if action is not taken to slash green house gas emissions.

-The harvests of some of the world’s key food crops, such as wheat, rice and maize, could drop by up to 30% over the next 100 years, due to global warming.

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