Climate Change

Share |

Global Warming can Indirectly Increase amount of CO2 Released by Oceans

June 10, 2014; 12:45 AM ET

New research has found that global warming could increase the amount of CO2 naturally released by the oceans, which in turn could accelerate climate change.

Tiny Plankton

Scientists from the University of Edinburgh in Scotland tried to find out how the ocean's ability to absorb atmospheric carbon dioxide (CO2) had changed over time by studying 26,000-year-old sediment core from the Gulf of California.

The research team analyzed silicon and iron concentrations of fossilized plankton.

As I have mentioned in previous blogs, plankton can lock away large quantities of carbon by absorbing atmospheric CO2 at the ocean surface.

Researchers found that those periods when silicon was least abundant in ocean waters corresponded with relatively warm climates, low levels of atmospheric iron, and reduced CO2 uptake by the oceans' plankton. (via the University of Edinburgh news report)

The study shows that a lack of iron at the ocean surface can limit the effect of other key elements in helping plankton take up carbon, according to the report.


The University of Edinburgh study was published in the journal Nature Geoscience.

The views expressed are those of the author and not necessarily those of AccuWeather, Inc. or


Comments left here should adhere to the Community Guidelines. Profanity, personal attacks, and spam will not be tolerated.

More Climate Change

  • Clouds are trending higher into the atmosphere

    July 11, 2016; 3:36 PM ET

    New research from the Scripps Institution of Oceanography at the University of California (San Diego) confirms what computer modeling had earlier predicted in regards to the impact of climate change on clouds and mid-latitude storm tracks.

About This Blog

Climate Change
In the Climate Change Blog, you will find links to the latest research, commentary by experts with various points of view on all aspects of global climate change.