The Great Lakes between the US and Canada are the largest bodies of fresh water in the world.For a long time,people live

The Great Lakes between the US and Canada are the largest bodies of fresh water in the world.For a long time,people lived happily beside the Lakes until the countries began to build factories along the shores.Pollution was killing the Lakes,Pretty soon,the Lakes’ ecosystem（生态系统）was not right any more.Scientists knew something had to be done.So did the government（*）.They learnt it was important to keep the ecosystem of the Lakes healthy and strong.If the Lakes dried up,the whole world would feel it.Many areas would become deserts and many animals would lose their homes and maybe die out.As a result,they set up a lab called the Great Lakes Environmental Research Laboratory to solve(解决)the problem.
1 What is the result of killing the Lakes?(Please answer within 10 words)
2What have scientist and government done with the pollution?(Please answer within 20 words)