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In the article “Fisheries impacts on China's coastal ecosystems: Unmasking a pervasive ‘fishing down’ effect” by Cui Liang and Daniel Pauly, the authors explain how the intensive fishing can greatly impact the marine ecosystems and a lot of other aspects. This indicates that the trophic level of the catches to decrease, and it’s a signal of the existence of the ‘fishing down’ (FD) occurrence.

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According to the article “Future fisheries can expect $10 billion revenue loss due to climate change” climate change has an influence on many high points. Global fisheries stand to lose approximately $10 billion of their annual revenue by 2050 if climate change continues unchecked, and countries that are most dependent on fisheries for food will be the hardest hit, finds new UBC research. A vast percentage of the globe is consuming fish everyday. Once again, if we will not control our consumption, with the help of the climate change, there are major chances more species will be instinct.

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Causes of climate change   

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In the article “The Big Thaw” by Daniel Glick, he reports that in the Glacier National Park in 1910 there were approximately 150 glaciers and now the amount has significantly decreased to less than 30 glaciers. And predicts that within 30 years they will all melt. Scientists have proof that the earth has rapidly been getting warmer, and the cause behind that would be human activity. The burning of fossil fuel and the growth of greenhouse gases in the atmosphere have affected the temperature of the earth.

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In the article “Climate change may bring big ecosystem changes” by Alan Buis, researchers from NASA's Jet Propulsion Laboratory, informs us that global climate change will be a big issue for the earth's plants. They will experience dramatic modifications caused by the human's high production of greenhouse gases. According to a new NASA and university computer modeling study, in the next three centuries the increase in ecological change and stress in the earth's biosphere, will cause many animal and plant species to face competition for survival.

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In the article published in Science Daily entitled “Extreme melt season lead to decade-long ecosystem change in Antarctic polar desert”, a group of researchers from the University of Colorado at Boulders found that during the very hot summer of 2002, the McMurdo Dry Valley in Antarctica endured rough changes in its ecosystem that would have an impact for the years to follow. The team believes that this event proved that even small appearing weather events can have impacts on a region for a very long time.

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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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In the article “As World’s Population Booms, Will Its Resources Be Enough for Us?” you’ll read about the relation between the population and the resources available. The question that is look at in this article is how much more people can the Earth support. This article talks about a lot of predictions and theories like the ones made by Thomas Malthus because it is believed that eventually, the Earth won’t be able to support his population. Scientists start to believe Malthus was right when he said that we grow more rapidly than we grow food because we consume so much for only one person.

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