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Articles on Oceans

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A view of the high Norwegian Arctic while aboard the research vessel Lance (July 2015). Rick Bajornas/UN

A new generation of ocean leaders

The UN's Ocean Decade demands collaborative action across disciplines, nations, communities, and generations, and its success relies on diverse voices that represent current and future ocean leaders.
NASA/Goddard Space Flight Center Scientific Visualization Studio

Satellites reveal ocean currents are getting stronger, with potentially significant implications for climate change

Our team discovered clear changes in the distribution and strength of ocean eddies. These changes have never been detected before.
Tampa Bay’s sea grass meadows need sunlight to thrive. Algae blooms block that light and can be toxic to marine life. Joe Whalen Caulerpa/Tampa Bay Estuary Program via Unsplash

Water being pumped into Tampa Bay could cause a massive algae bloom, putting fragile manatee and fish habitats at risk

Harmful algae blooms are an increasing problem in Florida. Once nutrients are in the water to fuel them, little can be done to stop the growth, and the results can be devastating for marine life.
Shutterstock

Marine life is fleeing the equator to cooler waters. History tells us this could trigger a mass extinction event

Climate change has already made tropical oceans too hot for some marine species to survive. As they flee towards the poles, the implications for ecosystems and human livelihoods will be profound.
Jeremiah Kiarie rounds up tilapia at Green Algae Highland fish farm in central Kenya on April 29, 2017. Tony Karumba/AFP via Getty Images

Farming fish in fresh water is more affordable and sustainable than in the ocean

Aquaculture is a growing source of healthy protein for millions of people around the world, but there are big differences between farming fish on land and at sea.
Female elephant seals take seven-month feeding trips during which they balance danger, starvation and exhaustion. Dan Costa

Risk versus reward on the high seas – skinny elephant seals trade safety for sustenance

By measuring how and when elephant seals sleep, researchers were able to figure out how elephant seals change their risk-taking behavior as they gain weight.
In August 2019 in the port of Marseille. The docking of cruise ships intensifies air pollution. Christophe Simon/AFP

Is the Mediterranean Basin really a hotspot of environmental change?

The Mediterranean region, with its biodiversity, climate, demographics, and economic activities such as tourism, agriculture and fisheries, is particularly vulnerable to environmental risks.

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