Friday, 6 February 2009

A polluted earth-an inconvenient truth

It is an astonishing discovery if we put two earth space photos of different time together. Obviously, we will find that our earth is becoming dirtier from initially quite a green one. Pollution is taking in charge of our earth now and it not only changes our everyday life, but also converts surface of the earth, and these effects are getting more serious now. It is an emergency to get the information that how the earth is today in case to come out general ideas to settle these problems down.

The most popular issue is global worming leaded by revealing large amount of green gases such as carbon dioxide. It is popular because all the countries share one atmosphere and the air flows to bring green house everywhere. This issue has caused a little influence on climate and the sea level. As climate changes, few agrarian countries have to convert several crops initial planting season and public policies to incentive farmers to change the crops they always planted. This year China is faced a serious drought problem involved several provinces caused by no snow this winter. In fact, the real cause for this disaster is global warming. It heats up surface of the earth and vaporize water droplets which could assemble together to produce rain. Another effect the global warming has caused is the increase of sea level. Thinking about Venice and you will find it.

Another kind of pollution is drinking water pollution. The industry water and dirt’s revealing caused by uncompleted policies of controlling the purification of factory effluent is the largest resource of water pollution. This pollution has caused millions of people’s abnormal deaths including 6000 children every day.

Other than these two, the earth is facing more and more pollutions such as land pollution, ocean pollution and air pollution.

As a conclusion, the earth is in emergency now and it needs us to bring it back to life. It is the time for us to take an action and defend our common home with pollutions now.

Sunday, 1 February 2009

Global warming

Global warming is when the earth heats up mostly resulting from releasing greenhouse gas like carbon dioxide. Global warming has affected global climate and kinds of animals’ life habits in a large scale. Nowadays it has be considered as the most priorities change in the recent few years and it is a world change for we share one atmosphere.
The effects of global warming are quite serious now. It should attract all of the world’s attention and deserves human taking actions to control it. Fighting with global warming is some kind of fighting with ourselves.
The useful way to control it is to control the discharge of greenhouse gases, which means we must make industry process more efficient or reduce the development of economy. One way to increase the efficient of producing is increasing the speed of changing old energies to new energies such as solar and nuclear partially from now on in the whole world. It needs the few countries which has high-technologies to corporate and help the other countries.
Another way to reduce the discharge is to find efficient technologies to turn greenhouse gases to liquid and hide it into the sea. Though this is a perfect idea to reduce air contents of greenhouse gas, it has not been accepted by humans, because they considering the effects it may made on seawater. However, large numbers of theories in environment science have indicated that the effects will not be as much as in human’s consideration. The reason why this technology is not applied is that it cost a lot of money and other resource and not all of countries are able to afford it. It needs some large countries such as USA to develop and apply it first. However, the fact is not as it should be.
In my point of view, it needs every one of us to make a little different to control the speed of global warming. Not using one-off plastic bag when you go shopping and refusing using one-off chopsticks when you eating in the mall. There are many ways to contribute to reducing the discharge of greenhouse gas in everyday’s life. Help the earth is equal to help us and our descendants.