Ecosystems change

by AlexandraGevry on Mars 13, 2018 - 10:12pm

In the article ‟Humans causing catastrophic ecosystems shifts, study finds”, the author, Thomson Reuters, discusses that human dominance over the natural environment has caused many changes in world ecosystems. Human activities have a devastating impact on ecosystems. As the author mentioned, the damage and exploitation of wildlife and natural vegetation by human beings has left ecosystems in bad shape. Unfortunately, at least 468 creatures have been eliminated from the planet since 1990, including the Costa Rican golden and Yangtze. Also, some organisms are killed off by ecosystem changes or over-exploitation. Jan Zalasiewicz, a professor of paleobiology at the University of Leicester, and co-author of the study, claimed that only creatures domesticated by humans will thrive in the future. There are several animals that are critically endangered, such as the humpback whales, Sumatran elephants, Sumatran orangutans, pangolins, leatherback turtles, Amur leopards, mountain gorillas, Sumatran rhinoceros, Sumatran tigers, Hawksbill turtles, black rhinoceros, Sumatran elephants, Baiji dolphins, Western lowland gorillas, and saolas. As the authors mentioned, climate change, the burning of fossil fuels and the loss of biodiversity are proving that humans are exploiting the earth's natural wealth. Furthermore, the article mentioned that global warming as a phenomenon is just the beginning. Since 1990, species extinctions and other changes are far more advanced. For example, extinction rates for vertebrates is 10 to 100 times higher than normal levels. We learned from the article that today's shifts, compared to the past, are including climate change, ocean acidification, and the loss of biodiversity. They have created a new type of nature. Briefly, the author, Zalasiewicz, said in the article that humans caused ecosystem changes.

When we read this article, we realize how fragile ecosystems are and how humans have devastated the environment. In my opinion, it is very sad to see that in some regions of the world the wildlife was unique and exotic, but unfortunately, with the changing environmental shifts due to pollution, global warming, abuse of resources, industry, things have changed. In fact, global warming is such a big issue, and it is obvious that future generations will not have the privilege of witnessing these beautiful, unique, and wild creatures as we have in our lifetime. 

http://www.cbc.ca/news/technology/humans-causing-catastrophic-ecosystem-...

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