Quantcast

Study Finds Ocean Warming Is Largely Man-Made

Climate

Responding to Climate Change

By Tierney Smith

The study, published in Nature Climate Change, examined rising ocean temperatures over the past five decades and compared them with a dozen different models used to project climate change.

It found that while 10 percent of the rising temperatures could be blamed on natural variations, man-made greenhouse gases were the major cause.

The researchers looked at the average temperature in the upper layers of the ocean—from the surface to 700 meters—and found global average ocean warming of around 0.025°C per decade, slightly more than one tenth of a degree warming over 50 years.

The researchers say this kind of warming would not have been possible without human impacts.

Scientists believe that the oceans absorb around 90 percent of atmospheric heat—warning that as temperatures in the atmosphere rise, ocean warming will also become an increasing problem.

Ocean warming has been blamed for events such as coral bleaching. Scientists are also concerned about the impact of fish and plant species from warming oceans—particularly Krill which like to breed in particularly cold water near sea ice.

Sub-surface, deeper ocean warming was noticeably less than the observed Earth surface warming—mainly due to the relatively slow transfer of ocean surface warming to lower depths, according to the researchers.

The latest report, a collaboration from researchers across America, India, Japan and Australia is said to be the most comprehensive look at how the oceans have warmed to date.

Read the full report by clicking here.

Visit EcoWatch's CLIMATE CHANGE page for more related news on this topic.

 

EcoWatch Daily Newsletter

Biosolids are applied to fallow wheat fields to build healthy soils at Boulder Park, Washington. King County

By Sarah Wesseler

Talk of natural climate solutions typically conjures up images of lush forests or pristine wetlands. But in King County, Washington, one important natural solution comes from a less Instagram-worthy source: the toilets of Seattle.

Read More Show Less
A video shows a woman rescuing a koala from Australia's wildfires. VOA News / YouTube screenshot

More than 350 koalas may have died in the wildfires raging near the Australian town of Port Macquarie in New South Wales, but one got a chance at survival after a woman risked her life to carry him to safety.

Read More Show Less
Sponsored
Jair Bolsonaro pictured at a presidential debate in Brasilia, Brazil June 6, 2018. REUTERS / Adriano Machado / CC BY-NC 2.0

Despite confirmation this week that the deforestation rate in the Amazon rainforest is at its highest in more than a decade, far-right Brazilian President Jair Bolsonaro refuses to take the problem seriously.

Read More Show Less
A healthy diet may reduce hearing loss later in life, according to a new study. PamelaJoeMcFarlane / E+ / Getty Images

Weight loss aside, there is no shortage of benefits to eating healthier: a lower risk of heart disease and cancer, reduced gut inflammation and preventing memory loss later in life, to name a few. A healthy diet may also reduce hearing loss later in life, according to a new study out of Brigham and Women's Hospital.

Read More Show Less
Tesla co-founder and CEO Elon Musk discusses vehicle dimensions in front of the newly unveiled all-electric battery-powered Tesla Cybertruck at Tesla Design Center in Hawthorne, California on Nov. 21. FREDERIC J. BROWN / AFP via Getty Images

Tesla just unveiled its first electric truck.

CEO Elon Musk showed off the new design at a launch event at the company's Design Studio in Hawthorne, California Thursday.

Read More Show Less