Bird's Nest In Traffic Light

　　Shenzhen is a subtropical monsoon climate with mild climate and plenty rainfall . The annual average temperature is around 22.5 degrees celsius. But recently Shenzhen is suffering a temperature drop to 16 degrees celsius due to cold air, which makes the Southerners used to warm weather have experienced the clammy.
　　

   Today the manager sent me and a colleague to our client’s project site to take photographs of traffic lights as the project cases. Although the weather outside makes me timid,  when I think of the fact that there stands a traffic lights at one crossroads which is produced by my factory in this thriving metropolis whose economic growth is at the peak of its development, it keeps me warm as weather grows colder. The traffic light not only bear witness to and play an important role in urban development,but also my struggle towards self-realization as one of those young man who choose to leave their hometown .And now I am proud of the traffic light because it realize my social and personal value.
　　
   Reaching the destination, the customer needed to replace the traditional incandescent traffic light by  the more energy saving and environmental protection of LED traffic lights. When my colleagues and i have photographed the vehicle traffic signal lamp in one direction of crossroads ,she suddenly shouted: "look, the bird's nest!"

   Along the direction of her finger I see the yellow lights of the three unit  motor vehicle traffic signal lamp​ has lived three lovely baby bird.
　　
      
   As the weather get cooler , the birds wisely build their nests inside the traffic lights because they can emit heat. I did not expect our LED traffic lights not only contribute to human beings in traffic safety,but provide home and protection for those small creatures. The thought warmed my heart and I felt even more proud.
　　
   I remember a news in the UK, the traffic light in the center of Liz street , lived a young bird family, happy comfortable, showing a natural harmony of the city and nature .
　　
   Tens of thousands of factories use a variety of technology to obtain material resources from nature, and produce various kinds of industrial products, as well as waste pollutants day and night .
　　
   As a result City turn out to be not only the manufacturing center making useful product to human being, but also the center of destruction of ecological, pollution of the environment.

　　
   At the same time, the rapid development of urban ecological system have limited or replaced the development of other organisms. More and more artificial facilities take away the space of the natural environment forming a significant characteristics of artificial. The  the number of biological community decrease , and the diversity of organisms has been threatened.
　　

   The Primitive and wild of nature are gradually taken place of the artificially.
　　
         
   Perhaps one day in the future, not only cannot you heard chirping of birds in high buildings, but you will never see birds darting and dancing in the forest. You can not see the wildlife that you used to see. Even you can not enjoy breathing pure , cool air any more.
　　

   Luckily now more and more enterprises like BBM led traffic lights have already been getting on to a green growth, low-carbon and recycle development path of new energy industry. They do their efforts developing more efficient energy saving and environmental protection products.
　　
   After the worker had finished installing the traffic light ,we request they to put back the bird’s nest to the new traffic light,so that the mother can find her baby when she came back home.
　　

  And what about us? Whether we can get back to our common home?