Is Climate Change Human Induced

Only available on StudyMode
  • Download(s) : 277
  • Published : May 22, 2013
Open Document
Text Preview
Climate Change
“Climate change is a change in the statistical properties of the climate system when considered over long periods of time, regardless of cause.” Global climate change is the changes in the seasonal patterns, weather systems and temperature of the planet over a long period of time. Climate patterns can influence natural ecosystems, dependency of cultures and global economy. The phrase “regardless of the cause” states that climate change can be induced by human activity as well as natural causes. This issue is largely debated over the world and the controversial idea of whether humans are causing increasing climate change. Many predictions have been made to expect the effects and the extents of climate change. Global Climate change will firstly increase the earth’s average temperature. This will influence the Earth’s weather patterns and amounts of precipitation, causing more rainfall and cyclones as the temperatures of the waters increase. So although there will be warmer temperatures there will not necessarily be a shortage in water. Snow and ice cover will be reduced as well as the amounts of permafrost. Projections have been made that for every 2°F of warming there will be a 15% decrease in annual average sea ice and a 25% decrease of September Arctic sea ice. The decrease in permafrost will have large impacts on Alaska, but will create more available land for agriculture, farming and development. This also means there will be less ice and snow to create the albedo affect therefore there will be less light reflected back into space and the Earth will absorb more heat. With the melting of the ice sheets in Antarctica and the coastal areas of Greenland the results of rising sea level will be inevitable; many coastal cities have been expected to be flooded as the sea levels rise; this will cause migration of people all over the world. This may also result in the overpopulation of land as there will be less land for more people. Plants and animals will also be affected; an estimated 57% of plants and 34% of animals are likely to lose half or more of their habitat range. The effects of climate change are ongoing and will affect many aspects of the environment as well as the culture of people. Average of all predictions of Global Temperature

Average of all predictions of Global Temperature
44 various different Global temperature predictions
44 various different Global temperature predictions

Two different sources of temperatures in reality
Two different sources of temperatures in reality

Large decrease due to the Clean Air Act in 1970 in the U.S
Large decrease due to the Clean Air Act in 1970 in the U.S

In the above graph the ‘spaghetti’ or the lighter colored lines of the graph are 44 of the most recent temperature predictions and the black line is the average of all these predictions. The red and blue lines are real measured temperatures from two different sources being UAH; a satellite temperature dataset created by the University of Alabama in Huntsville, which measures the temperature of the atmosphere at different levels by satellite. RSS being the Rich Site Summary new feed, which produces up to date documents of information. This graph firstly shows that climate change is not as severe as being projected and that the atmosphere is not as sensitive to CO2 as the models are predicted. There is a large drop in the trend of the graph; this is due to the 1970 Clean Air Act in the U.S and other European countries. The graph shows that the predictions are much higher than the reality of climate change and that although the temperature is increasing it is still fairly consistent. So as the graph show many predictions in climate change can be made and speculated but the outcomes may not match. Factors that cause change climate are called forcing mechanisms, these factors can be both natural and human induced, such as solar radiation, variation in the earth’s orbit, continental drift and changes in...
tracking img