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Alan Meza

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Greenhouse Gases -  Gas in an atmosphere that absorbs and emits radiation within the thermal infrared range

Pre-industrial - Relating to a time before industrialization

Re-radiated - To radiate again or especially to emit energy in the form of radiation after absorbing incident radiation

Demarcations - The action of fixing the boundary or limits of something

Permafrost - Soil, rock or sediment that is frozen for more than two consecutive years

Precipitation - Rain, snow, sleet, or hail that falls to the ground

Peninsula - A piece of land almost surrounded by water or projecting out into a body of water

Global Ocean Conveyor Belt - A constantly moving system of deep-ocean circulation driven by temperature and salinity

Gulf Stream - A warm ocean current of the northern Atlantic Ocean off eastern North America

Zooks - Zooxanthellae that live in coral

Subsistence Farming - When poor families cut down a few acres to grow enough food to survive

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We have already begun to see the heat waves scientists say will become more common if global warming is not addressed, In summer 2003 a massive heat wave in Europe killed 25,000 people. In summer 2005 many cities in the American West broke all time records for high temperatures and for the summer of consecutive days with temperatures of 100 F or more. In all more than two hundred cities and towns in the west set all time records and in the east a number of cities set daily temperature records including New Orleans.

Higher temperatures dry out soil which needs to hold in moisture in order for healthy crops to grow. If here in the United States we continue to add CO2 into the atmosphere at the rate we have been in less than fifty years vast areas of our farmland will dry out.

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In the summer of 2005 while the US was being hit by hurricanes, Europe was experiencing a disastrous series of floods. Warmer water increases the moisture content of storms and warmer air holds more moisture. So when theres a downpour more of it falls as a big one time rainfall or snowfall. This in part accounts for the increased number of floods decade by decade on every continent.

In July 2005, Mumbai, India received 37 inches of rain  in twenty four hours. It was by far tge largest downpour that any city in India had ever received in one day. Flood waters rose to seven feet. The death toll in western India reached one thousand. Global Warming relocates rainfall so that certain places unusual dry spells. In China in 2005, there was flooding in one province while a neighboring province experienced drought conditions

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The most technologically adcanced countries have the greatest obligation to use technology wisely and treat the planet resposibly. But the country best lnown for technological advancements is the one most reposible for the problem of global warming.. The United States. Our cuntry emits more greenhouse gas pollution than South America, Africa,  the Middle East, Australia and Asian put together.

Technological power hasnt always been used wisely . For example irrigation has long worked wonders for humankind. But now we have the ability to change the path of giant rivers according to our needs insted of nature´s. There is danger when too much water is diverted from its natural source.

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Is there evidence that the increase of greenhouse gases is causing glaciers to melt? The answer is yes. Studies on on glacier ice shoes the evidence. Glacier ice is deposited in layers so by taking out long cylinders of ice from glaciers all over the world, teams of scientists can measure many things,  including the average world temperature each year.

Graphs of ice core data shows that in the past couple of centuries the average yearly temperature has been increasing. Skeptics often say that global warming is an illusion and that differences in yearly temperatures occur naturally and not from what people are doing to the atmosphere.