Blog #19

                                    The Global Environment Transformed

            Human impact on the environment in the twentieth century was affected by three circumstances.  The first was human population growth due to the revolution of medicine and sanitation advances that lowered the death rates.  Additionally, Green technology in genetically modified seeds and fertilizers increased world food suppliers.   Secondly, with coal and oil, hydroelectricity, natural gas, and nuclear power added to the energy resources available to us.  Thirdly,  through science and technology, economic growth occurred through  goods and services.  Furthermore, these three circumstances contributed to humans remaking of the ecosystem.  The global spread of modern industry contributed to the vast amount of air pollution that unknown chemicals known as chlorofluorocarbons which protects the earth from excessive ultraviolet radiation.  Eventually this transformation leads to global warming by the twentieth century due to the increase of burning fossil fuels and carbon dioxide.

            Today, I try to do my part in reducing, rescuing, and recycling products every day to reduce the demand for fossil fuels.  I don’t have air conditioning nor do I every use our heater even in the winter because I live in warm California.   I do use fluorescent light bulbs.  I try to walk or take the bus.  I use as less electricity as possible, along with saving water.  I recycle water that I use to wash my vegetables and fruits.   Meanwhile, I hope other individuals depend less on fossil fuels that create greenhouse gases that contributes to global warming.