It was the first time I seriously watched a documentary about the earth, the natural environment, and animals. The impact of human activities on the entire ecological environment of the earth has become more and more serious. If no action is taken, only the efforts of environmentalists will have a very limited effect. Global warming has caused more and more sea ice in the polar regions to melt. The extent of sea ice is also shrinking, and the habitat of polar bears, penguins, walruses, and seals is shrinking; global warming is also destroying the growth of colorful coral reefs in shallow waters; industrial overfishing and plastic pollution Not only the ecology in the shallow sea but also the ecological cycle in the deep sea; grasslands and forests have also decreased by almost 90% because of human beings; the extensive use of fresh water and the construction of dams have a great impact on freshwater lakes, aquatic animals,,,, The impact of humans has been Serious damage to the entire ecological environment, but it also tells us that as long as we take action to protect the ocean, forests, grasslands, fresh water, and curb global warming, they can all recover on their own. Great contribution, I hope everyone can protect our entire natural environment to the best of their ability, otherwise we humans will suffer the consequences in the future. This documentary is very worthy of our serious consideration and what we can do.
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