Researchers have found that climate change is causing the Arctic ocean become more acidic.
The latest research is the work of a team from University of Gothenburg and was published in the journal Science.
The researchers compared data from a series of Arctic expeditions dating back to 1994 at 2020. The team found that the pH water north of Alaska and Siberia has decreased significantly. The team found that the rate of increase was significantly faster (three to four times) than in other oceans.
According Leif Andersonone of the study’s authors and a marine chemistry researcher at University of Gothenburg:
“The time series of pH measurements made in the Arctic Ocean is long. The oldest come from an expedition in 1994, when the ice cap was extensive and thick, and measurements were taken in the channels between the pack ice. During the 2014 expedition, the icebreaker Oden was able to travel in open water halfway from Siberia to the North Pole.
Discuss the effects of acidification, anderson added:
“Phytoplankton, which absorb carbon dioxide, benefit from climate change. For other species however, the news is not so good. Sea butterflies are a species of predatory sea snails that have aragonite shells which they form from calcium and carbonate ions. We have measured lower and lower levels of aragonite saturation in the ocean during our expeditions. All of these factors are consequences of climate change, and more open water in the Arctic amplifies their effects.
You can find the original research here.