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“However, the basis for plant growth is the supply with nutrients. “In former times it was assumed that phytoplankton potentially growth better in a warmer ocean,” she explained to. Six also notes that a warmer world does not necessarily mean a more productive world for phytoplankton as has been argued by researchers in the past. To date, the world has warmed approximately 0.8 degrees Celsius in the last century with a variety of impacts including worsening severe weather, rising sea levels, melting glaciers and sea ice, and imperiled species. Plugging the results into global modeling system, Six says, “we get an extra warming of 0.23 to 0.48 degree Celsius from the proposed impact ,” adding that “less sulphur results in a warming of the Earth surface.” This creates a positive feedback loop that will likely have impacts that are anything but positive, according to scientists. When they set the ocean acidification levels for what is expected by 2100 (under a moderate greenhouse gas scenario) they found that cooling DMS emissions fell. acidifying) in plankton-filled water tanks and measuring DMS emissions.
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Researchers, headed by Katharina Six with the Max Planck Institute for Meteorology, tested how acidification affects phytoplankton in the laboratory by lowering the pH (i.e. In fact, in the past scientists have believed that climate change may actually increase DMS emissions, and offset some global warming, but they did not take into account the impact of acidification. DMS, which contains sulfur, enters the atmosphere and helps seed clouds, leading to a global cooling effect. Scientists have long known that tiny marine organisms-phytoplankton-are central to cooling the world by emitting an organic compound known as dimethylsulphide (DMS). As if ocean acidification and climate change weren’t troubling enough (both of which are caused by still-rising carbon emissions), new research published in Nature finds that ocean acidification will eventually exacerbate global warming, further raising the Earth’s temperature.