When Canada and America started building factories along the shores of the Lakes, they because polluted. The factories would put their waste into the Lakes. Pretty soon the Lakes ecosystem was not right any more. When fish and plants began to die, a group of people and scientists knew something had to be done. They asked the government for a special program to help them clean up the Lakes and make them healthy again. These people set up a lab called the Great Lakes Environmental Research Laboratory. After they had studied the Lakes' ecosystem, they found that the pollution was killing the Lakes. They still study the ecosystem of the Great Lakes today. They have found out how the Lakes influence the weather in the world and how different ecological events, like warm waters in the seas, influence the Great Lakes. If the Great 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. People who live around the Great Lakes have learnt that it is very important to keep the ecosystem of the Great Lakes healthy and strong.

熱心網友

加拿大和美國在五大湖沿岸建起工廠以后，湖水受到了污染。工廠把廢物排放到了湖中。不久五大湖的生態系統就不健全了。隨著魚和植物不斷死去，一些人士和科學家認識到要為此做些事情。他們要求政府制定專門規劃，幫助他們凈化湖水，使其恢復健康。這些人士建立了五大湖環境研究實驗室。在研究了五大湖的生態系統后，他們發現污染正在使五大湖走向死亡。時至今日，他們仍在研究五大湖環的生態系統。他們發現了五大湖是如何影響世界的天氣，以及不同的生態事件（如暖水海洋）是如何影響五大湖的。如果五大湖干涸了，整個世界都會受到影響。許多地區將變成沙漠，許多動物將失去家園，甚至滅絕。生活在五大湖周圍的人們已經懂得，保持五大湖健康和強壯的生態系統是非常重要的。