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People who fish and dive love it when the winds are light and the seas are calm.

Coral reefs, not so much.

That's because calm seas means sunlight can penetrate better and heat up the water. When sea temperatures pass a 30.4 degrees Celsius average for a month — that's 86.72 degrees Fahrenheit — corals start to bleach.

Peter Haden / WJCT

The St. Johns Riverkeeper announced Tuesday it plans to sue the Army Corps of Engineers over its proposal to deepen the St. Johns River.

The Army Corps of Engineers says dredging the St. Johns River is a positive economic move for Jacksonville, but St. Johns Riverkeeper Lisa Rinaman says its plan ignores the project’s deep environmental impact.

Set your alarm clocks. The Perseid meteor shower, the annual celestial lightshow that Space.com com calls the most widely observed and dependable meteor display of the year, will peak tonight and early tomorrow morning.

LA Rolls Out Water-Saving 'Shade Balls'

Aug 12, 2015

Today, "shade balls" got their moment in the sun.

On Monday afternoon, the 20,000 black plastic balls tumbled down the slopes of Los Angeles Reservoir, joining 95,980,000 of their brethren already covering the surface of the water.

The final deployment of these shade balls was the last step in a $34.5 million water quality protection project aimed at preventing evaporation and algae growth in the reservoir.

Jacksonville Zoo To Host Experts For Shark Festival

Aug 7, 2015
Wikimedia Commons

Researchers and experts will speak at the Jacksonville Zoo and Gardens’ North Florida Shark Festival this weekend.

The speakers will discuss research and efforts to save the animals worldwide.

During an appearance on WJCT's “First Coast Connect,” one of the events speakers, Peggy Sloan, talked about her research and misconceptions about sharks. Sloan is the executive director of the North Carolina Aquarium.

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