World oceans may have absorbed 60% more heat than previously estimated

Dogtooth tuna

Dogtooth tuna

A new study warns the world's oceans have absorbed far more heat than previously thought.

The study's findings suggest that if society is to prevent temperatures from rising above that mark, emissions of carbon dioxide must be reduced by 25 percent compared to what was previously estimated.

The study was funded by the National Oceanic and Atmospheric Administration and the Princeton Environmental Institute. It's a little bit the same idea."Scientists normally measure ocean temperatures using thermometers, but stitching together a global temperature record requires thermometers around the globe".

The discovery took place because the authors of the new study were not satisfied with the information about the temperature and salinity of the ocean, which is compiled from a system of nearly 4,000 ocean buoys in waters around the world, called Argo.

The call to "protect the last of the wild" by scientists based in the US, Canada and Australia - follows studies of Earth's dwindling wilderness areas, which are important buffers against the effects of climate change. That could indicate the Earth is warming faster than than scientists have been estimating. Keeping those temperatures down requires cutting the amount of greenhouse gases pumped into the atmosphere.

With 2 degrees of warming, the impacts to humanity could be catastrophic, all but wiping out the planet's coral reefs, triggering severe food shortages and throwing hundreds of millions of people, especially in developing countries, into extreme poverty.

The team analyzed oxygen levels in the ocean and carbon dioxide (CO2) at three locations in the lower, middle and upper part of the Earth: the tip of Tasmania in Cape Grim, La Jolla, California, and Alert, Canada, only 800 kilometres from the north pole.

As the ocean heat, these gases have a tendency to be discharged into the air, which builds APO levels. "You have to model what's happening in the gaps".

A new report suggests that this has made seawater even warmer than we thought. "When you average over things, you beat down the error".

Resplandy and her co-authors used Scripps' high-precision measurements of oxygen and carbon dioxide in the air to determine how much heat the oceans have stored during the time span they studied.

A report by Reuters published this week - after a year-long investigation into seas between the east coast of the U.S. and West Africa - found that "marine creatures are fleeing for their lives" because of unprecedented ocean warming that is causing "an epic underwater refugee crisis".

Resplandy said her discovery is not meant to replace the Argo system but rather to complement it. The specialist said that findings show worrying data: sea levels could rise much sooner than the initial predictions. It helps them know how much excess energy is being produced, and it helps them predict how much heat the ocean is capable of absorbing and how much warming will be felt on the Earth's surface.