My speech will be about Global warming, this is the rise in the average temperature of the Earth’s atmosphere and oceans. In 2011 the emission of carbon dioxide and was the highest it had ever been before and it had also taken a similar jump in 2012. Over all, emissions of carbon dioxide had jumped 3 percent in 2011 and in 2012 it was estimated that it had jumped another 2. 6% in 2012. Scientists are 90% sure that Humans are the cause global warming from producing greenhouse gases produced by human activity like using a car which is burning fossil fuels and also is caused deforestation.
Since the early 20th century the Earth’s average temperature has increased by 0. 8 degrees centigrade. The effect of an increased temperature will result in the rise of sea levels. Global warming is strongest in the arctic and causes a more frequent occurrence of extreme weather events such as heat waves, heavy rainfall, droughts and species extinction. How do we stop Global Warming? Turning the thermostat down a few degrees can make a big difference in decreasing our carbon dioxide emissions.
Replacing a regular light bulb with compact florescent lights will save you ? 15 over the life of the bulb and reduce global warming. Driving less and using public transport more often will reduce the carbon dioxide from the burning of fossil fuels which are burnt every day from transportation vehicles. Decorating your house with plants and trees will help as they take in carbon dioxide and produce oxygen.