many people are active in fighting against unfair treatment to colored people, women , animals and so on. right now i am talking about fighting for respect to our environment.though the environment doesn't have a mouth to deprecate what humans have done to her, she retaliates through action. in the early years the chinese cut down large quantities of trees, at the source of the yellow river, which led to the disappearance of big forests and terrible floods. as a result, the huangtu plateau which was once covered with grass and forests was turned into barrens that supported fewer plants. another example was in several developed countries. because many chemical factories discharged poisonous gas without filtering it, cities were covered with so much poisonous gas that people were killed by the air they breathed in. what horrible scene!what we are suffering is only a small part of what the nature once suffered. if we don't take action to show respect to the environment.
measures should be taken to protect the environment on which we are relying. first governments should forbid destroying vegetation, rivers and lakes, oceans, as and the atmosphere as well. second voices should be made to announce the public of the importance of protecting the environment. third enterprises should pay special attention to the effect they have on the environment and work out solutions for the problems.
only by changing the way we treat the environment can we get along well with it. only by saving the environment can we save ourselves.
the earth scale change of climate has brought a new kind of natural disaster and the developed and complicated city system is holding a latent risk of expanding the damage artificially. also people has been spoiling the health since the immense quantity of chemicals have been produced and already used in pursuit of convenience and various toxic substances have been produced unintentionally and accumulated in environment.
therefore, we need some countermeasures from the viewpoint to prevent the city environment form disaster and to manage environmental risks. so we will develop and improve a new risk management system and a disaster prevention system to preserve and create the city environment where people feel easy and sound in their life.
pollution has been a serious problem for a certain time around the world. there are many causes for it. transportation is the main factor of pollution. when the waste gas from cars is released, the air is polluted. people breathing in the polluted air can develop respiratory disease. another factor is that people throw their garbage everywhere. all kinds of garbage not only spoil the splendid environment, but also cause environmental pollution. what's more, industrial pollution also deserves our attention. wastewater from factories is poured into rivers and this causes water pollution. as a consequence, the greenhouse effect becomes a problem which needs our immediate caution and how to solve is urgent all over the world. at present, some measures have been taken to prevernt.
for example, people classify the garbage and some is recycled after being collected. people are also encouraged to use paper products instead of plastic products because we know that our living condition will be worse if we keep ignoring this problem. and i believe we can prevent pollution if everyone makes the efforts.