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At least six Palestinians including three children and one woman were killed in two Israeli overnight strikes in Gaza Strip, medics said.
 
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Last year was Earth’s hottest year on record, and much of that is going into oceans. The average annual sea surface temperature of oceans away from the poles was a record 20.87 degrees Celsius (69.57 degrees Fahrenheit).

That’s deadly to corals, which are key to seafood production, tourism and protecting coastlines from erosion and storms. Coral reefs are sometimes dubbed “rainforests of the sea” because they support high levels of biodiversity — approximately 25% of all marine species can be found in, on and around coral reefs.