how does global warming affect our oceans?
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The ocean absorbs most of the excess heat from greenhouse gas emissions, leading to rising ocean temperatures. Increasing ocean temperatures affect marine species and ecosystems. Rising temperatures cause coral bleaching and the loss of breeding grounds for marine fishes and mammals.
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Ongoing climate change affects the marine environment in several ways: warming; reduced ice extent; rising water levels; changes in run-off from land; acidification resulting from an increased uptake of carbon dioxide from the atmosphere.
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Global warming affects evapotranspiration—the movement of water into the atmosphere from land and water surfaces and plants due to evaporation and transpiration— which is expected to lead to: Increased drought in dry areas.
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As a result corals lose their color and their source of food and energy. ... The overall warming of global sea water has led to bleaching at a large scale at coral reefs around the world. Ocean acidification, caused by greenhouse gas emissions, is another major threat to the state of the world's oceans.
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The effects of climate change could be devastating to vulnerable coastal and marine areas as well as to the function and structure of their ecosystems. Increasing sea level (1,7 mm/year) changes the shape of coastlines, contributes to coastal erosion and leads to flooding and more underground salt-water intrusion.
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Now, climate change is exposing sea turtles to even greater existential threats. Sea level rise and stronger storms will erode and destroy their beach habitats. Warming oceans will change ocean currents, potentially introducing sea turtles to new predators and harming the coral reefs some of them need to survive.
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Oceans absorb most of the heat produced from greenhouse gas build up, and temperature is only projected to increase. A September 2014 study suggested that increased water temperature might cut plankton populations by messing with natural cycles of nitrogen, carbon and phosphorus.
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Sea level rise is caused primarily by two factors related to global warming: the added water from melting ice sheets and glaciers and the expansion of seawater as it warms.
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Effects of Climate Change on Marine Life. Marine life faces challenges from warming waters and ocean acidification. Warming waters alter the latitude and depth at which certain species are able to survive, so many species are moving deeper or father north in the Atlantic to find cold water.
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The authors point out that global climate change could affect the food supply to the deep sea in many ways. Some relevant ocean processes that may be affected by climate change include wind-driven upwelling, the depth of mixing of the surface waters, and the delivery of nutrients to surface waters via dust storms.
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If global warming results in increased rainfall in the North Atlantic, and the melting of glaciers and sea ice, the influx of warm freshwater onto the sea surface could block the formation of sea ice, disrupting the sinking of cold, salty water.
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Climate change and its related impacts, such as ocean acidification, are affecting the survival of some marine species. ... Conserve: campaign to prevent the pollution of a local coastal environment or reduce use of plastics so that less of it ends up in our oceans.
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The effects of global warming in the Arctic, or climate change in the Arctic include rising air and water temperatures, loss of sea ice, and melting of the Greenland ice sheet with a related cold temperature anomaly, observed since the 1970s. ... The melting of Greenland's ice sheet is linked to polar amplification.
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This process is called ocean acidification. Climate change will affect coral reef ecosystems, through sea level rise, changes to the frequency and intensity of tropical storms, and altered ocean circulation patterns.
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Because relatively warmer water can absorb less oxygen climatic warming also reduces the oxygen concentration in the open sea. ... A reduced oxygen concentration within the water can already have a detrimental effect on fishing yields because oxygen dependent species usually leave such areas quickly.
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Climate change could lead to declines of underwater kelp forests through impacts on their microbiome. New research has found predicted ocean warming and acidification can change microbes on the kelp surface, leading to disease and potentially putting fisheries at risk.
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Burning of plastics and garbage can damage the ozone layer thus causing global warming. Global Warming contributes to damage on our natural resources especially in fishery.