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关于globalwarming的presentation演讲稿

关于globalwarming的presentation演讲稿
关于globalwarming的presentation演讲稿

First of all, thank you very much, Prof. Liu, for the opportunity you give us. It is a very

great pleasure indeed for us to make a conference report on the stage.

My name is Jeremy, Chinese name Hebiao, a master student from School of Mechanical Engineering, and our team has five people, two and me in the same academy, the other from

School of Transportation. Today, our presentation is “Global Warming”.We will make this presentation from the following aspects. OK, let us take a journey.

Venice is a beautiful water city, Venice looks like a dolphin. Maldives, an island country in the

Indian Ocean, is famous for its tourism industry. Some beautiful

pictures……………………..However, both of the two islands will be covered by water if the

global warming continue working or worse after half an century. So, if you want to make a close

touch with them, please catch time.

Next, my workmates will show some information detailed.

Before I explain the term of “Global Warming”, I want to share some pictures to everyone.

Right, let's get started. Please direct your attention to the screen. As you can see from a set

-Ocean temperature has risen 0.8 degree

of photos of “NASA”, during the past century, the Land

Celsius,and the sea level has risen 7 inches.

More seriously, the index will continue to rise faster. According to the index of global

governance, the average global temperature will be 3.5 degree Celsius above normal by the end

of the century.

In a report, scientists working for the United Nations concluded that sea levels could rise by

8 to 23 inches by the end of this century.

To return to the main subject, Global warming is defined as the rise of the average

temperature of the Earth's near-surface layer of air as well as the oceans, and extends to the

projected continuation of that rise.

Now, let's switch to the next photo of” CO2 emissions”

which from carbon dioxide

Information Analysis Center.

As can be seen by the figure, Carbon dioxide emissions increase year by year from the

middle of the last century. The current Carbon Dioxide emission is four times than the emissions

fifty years ago.

What is the connection of global warming and carbon dioxide? Carbon dioxide is a

'greenhouse gas ', a form of air pollution which causes global warming.

Global warming is the increase in the average temperature of the Earth's near-surface air an

d oceans in recent decades and its projected continuation.Th

e reason about global warming are as follows:

1.The forest resources in factors

Around the world, because of natural or man-made factors causing forest area is greatly red uced

2.Acid rain harm factors

The effects of acid rain to the ecological environment have become more and more attention

all over the world. Acid rain can destroy forest, acidification lakes, endanger biological, etc. At p resent, the acid rain in the world more concentrated in Europe and North America, most of the ac

id rain occurred in developed countries,some developing countries, acid rain, also in the

occurrence and development rapidly.

3.Toxic waste pollution factors

Growing toxic chemicals not only pose a serious threat to human survival, but also to the ecolo gical environment of the earth's surface will lead to harm.

4.Water pollution factors

According to the global environment monitoring system for water quality monitoring project shows that about 10% of the global monitoring of the pollution of the river, since this century, the hu man water consumption is dramatically increased, at the same time, water pollution, scale is continuall y expanding.

5.Human activities

Since the industrial revolution, human activities widely changed the shape of the earth's surf

ace and the distribution of plants and animals, especially the extensive use of fossil fuels and other ways to discharge a large amount of greenhouse gases into the atmosphere.

Thanks for listening, this is all for my presentation.

As we all know, global warming means not only the temperature of all parts of the world to

increase, but harm human’s life as well. There are many aspects of influence.

Initially, natural disasters happen more frequent. The maximum wind speeds of the

strongest tropical cyclones have increased significantly since 1981, according to research

published in Nature this week. And the upward trend, thought to be driven by rising ocean

temperatures, is unlikely to stop at any time soon.

Furthermore, Scientists predict an increase in sea levels worldwide due to the melting of

two massive ice sheets in Antarctica and Greenland, especially on the East of the US. However,

many nations around the world will experience the effects of rising sea, which could displace

millions of people.

Additionally, according to research published in Nature, by 2050, rising temperatures could

lead to the extinction of more than a million species. Let’s talk about the dange

rs of global

warming in the polar region. Resident animals like polar-bear and penguin will lose their habitats;

these small populations are highly vulnerable to extinction. For some species, the fragmented

habitats become too small to support a sustainable population.

Finally, global warming also caused massive crop failures. “Climate change is expected to

have the most severe impact on water supplies” , “Shortages in future are likely to threaten foo production, reduce sanitation, hinder economic development and damage ecosystems. It causes

more violent swings between floods and droughts.” And so on.

What can we do to prevent the situation from deterioration?

So as my teammates said there are lots of dangers about the global warming and the greenhouse effect, what should we do to face these problems?

For the government, I think our society should introduce some policies to limit many inappropriate behaviors which will cause the global warming easily. We should be encouraged to take the public transports, instead driving outside, such as taking the bus, metro or BRT when you go out. Clean energy is also a good choice in our daily life, such as the wind energy, hydroelectric energy, instead of the thermal power using fossil fuel or gas from the nature, for these fuels causing lots of carbon dioxide after burning, and this is the crime culprit which causes the global warming.

For us, we can do a lot to protect the earth. Closing the light after using, which is the easiest thing we can do to slow down the global warming and the greenhouse effect. By using Air-conditioning in a high frequency will also accelerate the process of the global warming. So we can heighten the temperature when we using it , furthermore the best way is not using it. Remember to save all the things when we use them. Only in these ways, can we have a good effect when we fight for the slowing global warming.

listening.

That’s all our presentation, thanks for watching and

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