marine life

A new study has found that marine life is moving away to the poles of our planet due to warmer water temperatures caused by global warming. The study, led by Australian researcher Elvira Poloczanska, reveals that the extra energy trapped on our planet due to global warming has gone to the oceans and in turn, the animals are going to colder waters.

This is one of the many ways climate change affects marine life. While most studies look at changes caused by global warming in a more specific and narrow perspective—most studies look at a particular species or a particular geographic location—this new study looks at marine life as a whole. Poloczanska and her team looked into 208 different studies to come to their conclusion.

And while not every single species was responding in this fashion to climate change, the study did find a large majority (82 percent, to be exact) was. How fast, you ask? The team concluded that animals are going to the poles at 45 miles per decade and certain creatures, like fish and phyoplankton, were moving at 172 and 292 miles per decade, respectively.

“In conclusion, recent climate studies show that patterns of warming of the upper layers of the world’s oceans are significantly related to greenhouse gas forcing,” write the authors of the study. “Global responses of marine species revealed here demonstrate a strong fingerprint of this anthropogenic climate change on marine life. Differences in rates of change with climate change amongst species and populations suggest species’ interactions and marine ecosystem functions may be substantially reorganized at the regional scale, potentially triggering a range of cascading effects.”

Related:   EPA’s Endangerment Finding Inflames Climate Change Debate

Another issue with warming ocean temperatures: rising sea levels. As we’ve written before, globally, rising sea levels threaten about a tenth of the world’s population who live in low-lying areas and islands which are at risk of flooding, including the Caribbean, Maldives and Asia-Pacific island groups. According to the World Wildlife Fund (WWF) reports that low-lying island nations, especially in equatorial regions, have been hardest hit by this phenomenon, and some are threatened with total disappearance. What’s more, ocean warming alters the marine food chain, results in ocean acidification and threatens Antarctic wildlife by potentially endangering populations of penguins, whales, seals and a host of smaller creatures within a few decades.

Unfortunately, a study published Jan. 6 in the journal Nature Climate Change found that the previous prediction of sea level rises have been grossly underestimated and that the actual sea level rise could be as much as three feet. The study’s co-author told  NBC News that millions of people would be displaced as a result and cities (such as New York City and Tokyo) would have to spend billions of dollars to prevent flooding.

The Fourth Assessment Report (AR4) of the Intergovernmental Panel on Climate Change (IPCC) had predicted that global warming would result in a sea level rise anywhere between 7 and 23 inches, but the new study states that this 2007 report did not take into account the melting Antarctic and Greenland glacial ice sheets.

“This is the first study of its kind on ice sheet melting to use a formalized mathematical pooling of experts’ opinions,” Bamber said in a news release. “It demonstrates the value and potential of this approach for a wide range of similar problems in climate change research, where past data and current numerical modeling have significant limitations when it comes to forecasting future trends and patterns.”

Susmita is a writer and editor in the Greater New York City area. In her spare time, Susmita enjoys cooking, traveling, dappling in photography, art history and interior design, and moonlighting as a therapist for her loved ones.

2 COMMENTS

  1. The fastest mitigation to climate change is to severely reduce consumption of animal foods. About 1/2 of human induced warming is attributable to animal agriculture. Methane is 24 times more potent than CO2 and takes only 7 years to cycle out of the atmosphere. CO2 takes around 100 years to come out. Human pursuit of animal protein is the leading cause of methane release and a primary cause of CO2 concentrating in the atmosphere. Check the facts and act!

    “A 1% reduction in world-wide meat intake has the same benefit as a three trillion-dollar investment in solar energy.” ~ Chris Mentzel, CEO of Clean Energy

    “As environmental science has advanced, it has become apparent that the human appetite for animal flesh is a driving force behind virtually every major category of environmental damage now threatening the human future: deforestation, erosion, fresh water scarcity, air and water pollution, climate change, biodiversity loss, social injustice, the destabilization of communities, and the spread of disease.” Worldwatch Institute, “Is Meat Sustainable?”

    “The livestock sector emerges as one of the top contributors to the most serious environmental problems, at every scale from local to global. The findings of this report suggest that it should be a major policy focus when dealing with problems of land degradation, climate change and air pollution, water shortage and water pollution, and loss of biodiversity. The impact is so significant that it needs to be addressed with urgency.” UN Food and Agricultural Organization’s report “Livestock’s Long Shadow”

    “If every American skipped one meal of chicken per week and substituted vegetables and grains… the carbon dioxide savings would be the same as taking more than half a million cars off of U.S. roads.” Environmental Defense Fund

    “It’s not a requirement to eat animals, we just choose to do it, so it becomes a moral choice and one that is having a huge impact on the planet, using up resources and destroying the biosphere.” ~ James Cameron, movie director, environmentalist and new vegan

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