Blog 7: Climate Change

     The cause of climate change is the biggest and the most controversial issue of the present.  There has been arguments on wether not human activities was causing global climate change. There are alot of reason why climate weather has changed.  As the continents have moved through the process of plate tectonics they have experienced different weather changes and also there has been a change in land mass.  The sun plays a huge role in our climate since the sun is a source of heat and light for our planet.  The volcanic activity is also plays a role in our climate change by putting large amount of material into the earth's atmosphere. Some people honestly believe that human activity causes climate change.  Greenhouse effect brings out warm air and also retains it but it doesn't bring out cold air.  The most common greenhouse gases are water vapour, carbon dioxide, methane, water vapour, ozone, nitrous oxide and CFC-12.  The most commom of these gas is known to be water vapour even though it has little effect on human activity. Since the 18th century, the         human activity affecting the level of carbon dioxide in the atmosphere has largely increased.  
     The article gives us alot of different ways that climate change can occur and there are some I was not familiar with. The article also mentioned about human activity having some impact on climate change and I would have to agree.  I believe the gas in cars or factories that human use affects the atmosphere and also the climate change.  This article points out the main points about climate change and how each individual main point affects the earths climate.



Source: 
http://www.earthtimes.org/encyclopaedia/environmental-issues/climate-change/