Itis a raining day in
Nanjing today. Here once it starts torain,it will generally last several days. Sometimes I hate raining. And the wind always brings about rain that makes people difficult to walk. In the spring of
this year, the abnormal weather is seemingly colder than the winter of last year. So now many people still have to wear the thick clothes.
In fact, in recent years this abnormal weather often exists at a high frequency all over the world. The
experts on Metrology say human beings’ activities contribute to the deterioration ofsuch weather condition largely. Since the Industrial Revolution began, human beings started to ruinthe nature little by little. First, the multiply of natural
resources, especially those irreproducible resources, were exploited intemperately to make the industrial products. When nature brings the natural disasterto human being, thenthey willrealize
thatwhat they have doneis wrong. So many kinds of protection activities were takenin all fields. This “pollute first, control second” road is walked by many of developed countries. In China, the
size of land is larger, but the natural resources areless than other countries in the world. So the policy of sustainable development has to be carried out. Everyone must take action to protect our
home for our next generation.