The Causes of Climate Change

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Many people might think that anthropogenic influences are the only cause to climate change on Earth. However, there are many factors which are unnoticed by the human population that contributes to this crucial issue. For example, the most common phenomenon is global warming which is a factor to the progression of climate change over time. (1) This means that climate change has not just happened for a year, but throughout the Earth`s climatic history. In the modern era, this has been a controversial issue at which people only think that human activity is a primary cause of climate change, but there is a consensus view of this problem. There are 97.1 percent of the scientists who believe that climate change trends are caused by human effects. (10) This means that human actions such as deforestation, burning of fossil fuels, and growing population results in an increase of greenhouse gases such as CO₂ in the atmosphere to contribute to the greenhouse effect. (4, 5) Nevertheless, there are many natural causes such as volcanic eruptions to cause global cooling, solar irradiance which affected climate in the past and ocean currents which affects the exchange of gases going in and out the atmosphere. (2, 3) To begin, a cause of climate change due to human effect is deforestation and using it for land purposes and agriculture. One of the effects is that the water cycle is disrupted due to the loss of trees which moves water vapour up to the atmosphere. (6, 9) Also, trees absorb the greenhouse gases so without it there is an increase amount of CO₂ in the atmosphere. (6) According to the IPCC, based on the Edgar Databases in 2004, the result of deforestation caused 7-16 percent of the total greenhouse gas emissions. (7)It is because the e... ... middle of paper ... ...aphic%20trends%20matter%20to%20climate%20change.pdf 15) http://www.ipcc.ch/publications_and_data/ar4/syr/en/mains3.html 16) http://www.ipcc.ch/ipccreports/far/wg_I/ipcc_far_wg_I_chapter_01.pdf 17) http://eprints.usq.edu.au/2530/1/climate_justice_campaigns_and_environmental_refugees.pdf 18) http://volcanoes.usgs.gov/hazards/gas/climate.php 19) http://climate.envsci.rutgers.edu/pdf/ROG2000.pdf 20) http://climate.nasa.gov/causes 21) http://www.atmos-chem-phys.net/13/3945/2013/acp-13-3945-2013.pdf 22) http://earthobservatory.nasa.gov/Features/SORCE/sorce_03.php 23) http://www.ipcc.ch/publications_and_data/ar4/syr/en/spms1.html 24) http://www.ipcc.ch/publications_and_data/ar4/syr/en/spms3.html 25) http://www.pfeg.noaa.gov/research/climatemarine/cmfoceanatm/cmfoceanatm2.html 26) http://www.neaq.org/conservation_and_research/climate_change/climate_change_and_the_oceans.php

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