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The idea that global warming is effecting marine life has been known to scientists for a while. The oceans are affected in many ways, including the greenhouse gases causing more heat to be absorbed by the ocean. Other affects include rising sea levels, coastal flooding, and ocean acidity. Marine life has been tracked as the waters warmed, one example being the sea turtles. As the warming water causes the currents to change and sea levels to rise, it affects migratory species like the sea turtle. The beaches that the sea turtles use to lay their eggs are also becoming too hot, causing the eggs' sex ratio to change, or not hatch at all. Many species of sea turtle are set to be extinct in few decades.
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It is not just the turtles that are being changed by the warming waters. Marine scientist, Ken Heck, noticed a change in the numbers and species of fish in the Gulf of Mexico. He found an increase in fish, as well as an addition of over seven new species of tropical fish. They are finding that species that were previously in one place, are being found further up the coast.