Wednesday, April 24, 2013

Paraphrasing Project



Scientists hope that models of how the earth will reply to a growth in carbon dioxide could be helped by the geological information within this 10,000-year-timeframe. Models can be used to explain more about how our weather is changing, and how the planet is going to response to those changes by climate scientists; in the same way, models is used to make predictions about the weather by weather forecasters.(Cruddas, par.3)

A significant step is knowledge how the earth responded to higher CO2 levels in the past. During its history, the natural has been changed by Earth’s temperature and the quantity of carbon dioxide in the air. According to Dr James Riding at the British Geological Survey: “Changes in the levels of CO2 are caused by several unrelated processes,” and Volcanoes, plants and animals, destabilisation of the oceans, methane in the sea floor, these are all natural mechanisms for altering CO2.” In contrast, these natural causes alone wouldn’t have created such an increase in the time since the industrial revolution. As said by Professor Bette Otto-Bliesner, a senior scientist at the National Center for Atmospheric Research in Boulder, Colorado: “We know we cannot explain this increase,” and “There has to be a human influence.”(Cruddas, par.4)






 

Thursday, April 18, 2013

American culture



     I have been America six months. I have learned many things about American cultures. Americans like fast foods like burgers and fries. Americans like watching footballs on Saturday and Sunday. One thing made surprise me is the America doesn’t have official language. Most people including me think English is official language in America. Finally, I experienced holiday in America such as Independence Day, Thanksgiving, Christmas, and Halloween. These are my experiments that I learned while I am studying in America.