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In the article "Fishing problems: poor fisheries management," it explains the problems that are going on in oceans and fisheries and what their main causes and affects are. Oceans are also threatened by marine plastic pollution and each year, an estimated 8 million tons of plastic enter the oceans, with microplastics becoming part of the food chain. Scientists estimate that without urgent action, there could be more plastic than fish in the ocean by 2050.  While complex, the issue of ocean plastic waste is a solvable challenge.

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In the article "Evaluation of climate models using paleoclimactic data" it explains how in this period it is the warmest periord in modern civilization, and this trend is expected to continue over time. The climate over the last few years have been record breaking, the last 3 years have been the warmest years on record for the globe. Evidece has shown that it is most likely due to human activities, such as emissions of greenhouse gases. They have susposedly been the number one cause of climate arding since the mid 20th century.

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In the article “Fisheries and the Environment”, it is described how marine ecosystems are severely damaged due to commercial fisheries; the purpose of this article is to inform the public on the causes and effects of commercial fisheries’ practices. It is further stated how overfishing disrupts the aquatic ecosystems; though fish may be renewable, they are not inexhaustible; the life and health of fish are in danger, as many are losing their habitat and are getting contaminated by elements negatively affecting the waters that fish live in.

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In the article “Climate Change Cause and Effect” by Joseph F. Doyle explains what humans that causes so many consequences. During 1950, the annual amount of carbon dioxide that was released in the air was around 9.2 billion tons. Nowadays, humans use 40.8 billion tons of carbon dioxide per year. In between Christmas 2017 and January 8, 2018, there was almost a new record made when it came to the amount of snowfall in North America. Other natural disasters such as strong hurricanes, wildfires, drought, hail, tornadoes and flooding have caused the U.S.

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Human well-being depends notably on material welfare, health, good social relations, security, and freedom. All of these are affected by changes in ecosystem services, but also by the supply and quality of, for example, social capital and technology. In the article it explains, when the supply of ecosystem services exceeds the demand, an increase in supply tends to enhance human well-being only marginally.

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In the article, “Natural Changes That Can Affect an Ecosystem”, Amy Harris discusses how an ecosystem can change naturally with the help of drivers, ecological succession, severe storms and other factors. For example, wind, rain, predators, and storms such as hurricanes are all examples of natural events that can change an ecosystem. An ecosystem can also be composed of non-living things such as, rocks, wind, air, soil etc. There are also different kinds of ecosystems for example, grasslands, tundra and many others.

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In the article "How Many People is Too Many People" by Hannah Geis, the author is very concerned about too many people on our Planet and thinks of solutions to this threat. She explores the problems facing world population and how we can ensure that our resources do not dwindle as our population expands.  Population growth is the increase in the number of people in a region and is occurring at all times all around the world. Population growth can have both positive and negative effects on countries, regions, and even the world.

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