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Human Activity and Climate Change

Human Activity and Climate Change - RunningHead:Human...

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Running Head:  Human Activity and Climate Change   1 Human Activity and Climate Change Andrew McCleskey Grantham University GS104 Introduction to Environmental Science March 15, 2011
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Human Activity and Climate Change 2 There is no doubt in my mind that Human activity is a large contributor to climate change. Since the beginning of controlled fire we have been burning. It wasn’t until the last few hundred years that we have begun burning fossil fuels. It has grown exponentially in the last 100 years to an alarming high. We are fossil fuel dependent. Almost everything we use or eat needs some sort of burning of fossil fuel to produce. We use fossil fuels in every form of transportation. We use fossil fuels to power the farm equipment that harvests the food we eat. We burn fossil fuels in the factories that manufacture the goods we use on a daily basis. Humans have the largest Environmental footprint of any species on the planet. We are constantly producing toxic gases that are affecting the climate change. Greenhouse gases are necessary to life as we know it, because they keep the planet's surface warmer than it otherwise would be. But, as the concentrations of these gases continue to increase in the atmosphere, the Earth's temperature is climbing above past levels. According to NOAA and NASA data, the Earth's average surface temperature has increased by about 1.2 to 1.4ºF in the last 100 years. The eight warmest years on record have all occurred since 1998, with the warmest year being 2005. Most of the warming in recent decades is very likely the result of
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