Ocean Ramsey encounters 20-foot great white shark

A great white shark made a rare appearance Tuesday to feed off a dead sperm whale off Oahu's South Shore, in Hawaii.

Professional freediver Ocean Ramsey spent a day swimming with a female shark she identified as "Deep Blue," one of the largest known great white sharks.

The magic, yet dangerous moment was captured by Ramsey and professional photographer Juan Oliphant. The 20-foot predator even brushed up against the research boat.

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Ocean warming increases global wave power

Wave power increased globally 0.47 percent per year since 1948.

According to a study published in "Nature Communication," ocean warming is affecting the behavior of waves at a planetary level.

Borja G. Reguero, an assistant researcher in the Institute of Marine Sciences at the University of California, Santa Cruz, and his colleagues concluded that the wave energy transferred from the wind into the surface of the oceans increased 0.4 percent per year in the last 70 years.

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Half of US coastal states fail to address sea level rise

The majority of US coastal states still fail to design and implement effective coastal protection plans and schemes.

According to the 2018 State of the Beach Report Card released by Surfrider Foundation, the situation is worse in states that are often affected by extreme weather events.

The study led by the environmental organization evaluates the performance of US states and the territory of Puerto Rico in four main categories: sediment management, coastal armoring, development, and sea level rise.

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Origami is the ancient art of paper folding. Kites were probably invented in China around 500 BC. Let's blend both crafts and make a simple, high-flying Origami kite.

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