There are students that, as the world economy, people's living standard will be gradually increased, but the earth will become increasingly serious environmental problems, such as pollution, global warming, and so on.

There was also a classmate who believe that, with the development of the world economy, living standards will be gradually increased, but the earth's environmental problems will also be increasingly serious, such as pollution, global warming, and so on.

Also some schoolmates believed that, along with world economics development, people's living standard will be able to advance gradually, but Earth's environment question will also be able to be day by day serious, for instance the pollution, the climate will change warm and so on.

Some students think that, with the development of the world economy, people's living standards will be gradually increased, but the Earth's environmental issues are becoming increasingly serious, such as pollution, climate change, and so on.

Some students think that, with the development of the world economy, people's living standards will be gradually increased, but the Earth's environmental issues are becoming increasingly serious, such as pollution, climate change, and so on.