renewable energy英语演讲

renewable energy英语演讲

Ladies and gentlemen,

I am honored to stand here to share with you on such a important

subject as climate ,it is global warming .

Let me give you two phenomenons.

Here is the first one. More and more people used to be using air

condition，but how many people ever thought whether this new ,hobby

will bring side-effects or not? Maybe just few people. In fact, the

side-effect is apparent. The emissions of gases exhausted from air

conditioning contain a lot of methane .which could cause global warming.

By the way, air conditioning will waste a lot of electricity .

The second one is about the increasing amount of cars. According

to the statistics, in 21st century, there are 7 millions cars in the world, a

large amount of exhaust gases has seriously influenced us, such as:

cough, throat inflammation.

This two phenomenons are just few part of reason which change

our environment badly. There are many other reasons.

In nearly 100 years, the average global temperature experienced

twice fluctuations which is “cold-warm-cold-warm”. Generally, it is the

trend that global climate is becoming warmer and warmer . In

1980s,global temperature rised apparently. According to Chinese

scientists, the average temperature in China has risen by 1.1 degrees