Coral reef and climate change homework

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Coral reefs provide coastal protection for communities, habitat for fish, and millions of dollars in recreation and tourism, among other benefits. But corals are also severely threatened by rapidly worsening environmental conditions. Learn how NOAA works to restore these valuable habitats. Corals can be attached to reefs piece by piece with cement, zip ties, and nails. Photo: Reef Resilience Network.
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Protecting Coral Reefs

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How to save beaches and coastlines from climate change disasters | Newsday

Scientists have provided the first evidence to show that eradicating rats from tropical islands effects not just the biodiversity on the islands, but also the fragile coral seas that surround them. The new study led by scientists at Lancaster University and published in the journal Current Biology shows that critical cycles of seabird nutrients flowing to coral reefs are re-established within relatively short time periods after rats are removed—even around islands that have been infested for hundreds of years. The findings offer encouragement that rat eradication can benefit coral reefs, because these nutrient flows can bolster the health of delicate coral reef ecosystems and may improve their chances of rebounding between climate disturbance events. Seabirds are a critically important distributor of nutrients for island and marine environments. They feed on fish often in the open ocean far from islands, and then return to islands to roost—depositing nitrogen-rich nutrients on the island in the form of guano—or poo. Some of the guano is then leached off the islands by rain and into the surrounding seas where the nitrogen fertilises corals and other marine species such as algae and sponges, boosting the food-chain. However, over the last several centuries people introduced rats to many tropical islands through settlement, sailing between islands and shipwrecks.
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Climate change could kill all of Earth's coral reefs by 2100, scientists warn

Background: At the 18th U. In , when the USCRTF returned to American Samoa, the members passed Resolution Coral Reefs and Climate Change Renewed Call to Action - reaffirming the commitment of the members to work together to understand, reduce, and adapt to the impacts of climate change on coral reef ecosystems. Issue Statement: Climate change and ocean acidification continue to intensify as global threats to coral reefs. This requires accounting for, and adjusting to, the effects of climate change and ocean acidification across all coral reef conservation, mitigation and restoration efforts. Only by understanding and adapting to the effects of climate change and ocean acidification will it be possible to meet the USCRTF mandate to protect and enhance the condition of coral reef ecosystems and safeguard their sustainability for future generations.
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They buffer shorelines from the effects of hurricanes. An estimated million people earn their livelihoods from the fishing stocks and tourism opportunities reefs provide. The tiny animals that give rise to reefs are even offering hope for new drugs to treat cancer and other diseases. Despite their importance, warming waters, pollution, ocean acidification, overfishing, and physical destruction are killing coral reefs around the world.
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