Comparing with the past, do you feel any warmer these days? Maybe you don’t take much notice of it. Nevertheless, on account of the burning of fossil fuels, the temperature has been increasing during the 20th century. In consequence, green house gasses（mostly CO2）trap heat from the sun and therefore warm the earth, causing both rising of sea level and terrible climate catastrophe. Presume that the temperature keeps on going up, no bright sunshine will visit us, unclear air will choke us and heat waves will kill us mercilessly.
However, much to our delight, nowadays countries and some organizations are aware of the importance of cutting the producing of carbon-dioxide. The U.N. Climate change conference opened in Copenhagen, Denmark on Dec.7th, 2009 arouses great concern from experts and officials, us included. Besides, in China, an effective law system has been set up to avoid producing too much greenhouse gasses.
Well goes a saying that protecting the earth is protecting ourselves. At the same time we are supposed to undertake the responsibility to lead a low-carbon lifestyle, which is of great significance. Needless to say, low-carbon lifestyle means a lot to our society. First of all, so great a method is it to control the global warming that we are bound to make good use of it. Moreover, to some degree, it contributes a lot to our health.
Absolutely there is a diversity of measures we can take so as to lead such an environmental-friendly life. For one thing, it is known to us all that large quantities of greenhouse gases are produced mostly by motor vehicles so that we, if possible, can walk or ride to school instead of depending on cars all the time. For another, we should spare no efforts to reduce energy in our daily life, for energy in the world today is decreasing rapidly. For instance, we can turn off electrical appliances if not necessary as well as using recycled materials. Furthermore, at our leisure, we can seek opportunities to plant more trees which can absorb carbon-dioxide. Last but not least, we are responsible for calling on others to lead low-carbon lifestyles.
In brief, low-carbon lifestyle is nothing but the best choice for us and only in this way can we form a harmonious relationship with the environment.
(责任编辑：演讲网 yanjiangcn)
