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Hantaviruses are usually spread by exposure to urine, saliva or feces from infected rodents, such as rats or mice. Hantavirus infections are rare but can cause deadly respiratory infections.

We look at why inflation remains high in Florida and what citizens are doing to grapple with rising costs of living. Plus, the threat that warming waters cause to coral reefs.

A century ago, the shipping industry recorded the daily ebb and flow of tides. Now, those records are becoming crucial for forecasting how fast sea levels are rising in a warming climate.

They make their living off the sea, but their catch is dwindling. So these traditional fisherfolk are taking steps to preserve both sea life — and their livelihood.

Nature's healing power is an immensely personal focus for Foster. He made his film after being burned out from long, grinding hours at work. After the release of the film, he suffered from insomnia.

The U.N. Intergovernmental Panel on Climate Change released a report on how the world's oceans and ice are affected by climate change. Sea level rise is accelerating as is ocean warming.

Phytoplankton are tiny ocean organisms that naturally sequester carbon, like plants on land.

The oceans play a big role in preventing the Earth from getting even hotter due to climate change. That's thanks to the ocean's natural waste recycling system, a process that's still mysterious.

The massive ice sheet on Greenland is shrinking as the climate gets hotter, pouring fresh water into the Atlantic Ocean. That could be setting off a chain reaction that's altering ocean ecosystems.

Each night, the organisms gather in a "vertical stampede" to feed at the ocean's surface. Research suggests the columns of swimming animals can create large downward jets that help churn the waters.