Scientists say that only significant cuts in fossil fuel emissions will prevent changes to the environment becoming more widespread
Ocean acidification could have serious consequences for the millions of people globally whose lives depend on coastal protection, fisheries and aquaculture, a new publication suggests.
Writing in Emerging Topics in Life Sciences, scientists say that only significant cuts in fossil fuel emissions will prevent the changes already evident in areas with projected future carbon dioxide levels becoming more widespread.
They also call for a binding international agreement that builds on the United Nations Sustainable Development Goals to minimise and address the impacts of ocean acidification.
The article was written by Jason Hall-Spencer, Professor of Marine Biology at the University of Plymouth, and Plymouth graduate Dr Ben Harvey, now Assistant Professor at the University of Tsukuba’s Shimoda Marine Research Center.
They and other collaborators have published several studies over the past decade that show the threats posed by ocean acidification in terms of habitat degradation and a loss of biodiversity.
These have centered around the coast of Japan, where they demonstrated ocean acidification is having a major impact on marine life, and in the Mediterranean where they showed it was having a negative impact on wild fish.
Both regions have volcanic CO2 seeps, where the escaping gas dissolves into the sea water and creates conditions similar to that expected to occur worldwide in the coming years.
Their new publication provides a synthesis of the likely effects of ocean acidification on ecosystem properties, functions and services and is based on laboratory experiments and observations along natural gradients in CO2.
It says that studies at CO2 seeps worldwide have shown that reefs made by organisms with shells or skeletons, such oysters or corals, are sensitive to ocean acidification and that degraded reefs provide less coastal protection and less habitat for commercially important fish and shellfish.
This amplifies the risks to marine goods and services from climate change causing shifts to seaweed dominance, habitat degradation and a loss of biodiversity in the tropics, the sub-tropics and on temperate coasts.
Dr Harvey, who graduated from the BSc (Hons) Ocean Science programme in 2008, said:
“We are releasing around 1 million tons of carbon dioxide per hour into the earth’s atmosphere. About 25% of this gas is taken up by the ocean where it reacts with seawater to form a weak acid, causing surface ocean pH to fall by around 0.002 units per year. The chemistry of this rapid change in surface waters is understood, yet there is uncertainty about its effects on society which is what we are trying to overcome in this study.”
Professor Hall-Spencer, the publication’s lead author, added said:
“The Paris Agreement on climate change was welcome. But it does not mention ocean acidification, nor the fact that this rapid change in surface ocean chemistry undermines the social, economic and environmental pillars of sustainable development. The time is ripe for a ‘Paris Agreement for the oceans’, with the specific target to minimise and address the impacts of ocean acidification, including through enhanced scientific cooperation at all levels.”
The Latest on: Ocean acidification
via Google News
The Latest on: Ocean acidification
- Without otter predation, sea urchins are decimating Aleutian reefson October 6, 2020 at 9:10 am
Sea urchins dine on a reef in the Aleutian Islands. Urchins, which boomed after sea otters disappeared, destroyed many kelp forests on the reefs and are now eating the algae-filled reefs that have ...
- For red abalone, resisting ocean acidification starts with mom (TDnews)on October 5, 2020 at 12:17 pm
An adult red abalone at the UC Davis Bodega Marine Laboratory. view more Credit Image: Sara Boles/UC Davis Red abalone mothers from California’s North Coast give their offspring an energy boost when ...
- For red abalone, resisting ocean acidification starts with momon October 5, 2020 at 12:01 pm
Red abalone mothers from California's North Coast give their offspring an energy boost when they're born that helps them better withstand ocean acidification compared to their captive, farmed ...
- Sentinels of ocean acidification survived Earth's last mass extinctionon October 5, 2020 at 9:13 am
Two groups of tiny, delicate marine organisms -- sea butterflies and sea angels -- were surprisingly resilient in the face of dramatic global climate change and Earth's most recent mass extinction ...
- Planktonic sea snails and slugs may be more adaptable to ocean acidification than expectedon September 30, 2020 at 9:33 am
Pteropods, or ''wing-footed'' sea snails and slugs, may be more resilient to acidic oceans than previously thought, scientists report. By digging into their evolutionary history, the research team ...
- CORRECTION: Sea butterflies and sea angels survived Earth’s last mass extinctionon September 29, 2020 at 10:01 pm
Two groups of tiny, delicate marine organisms, sea butterflies and sea angels, were found to be surprisingly resilient—having survived dramatic global climate change and Earth’s most recent mass ...
- Marine organisms have evolutionary resilience to adapt to increasingly acidified oceanon September 28, 2020 at 10:43 pm
Two groups of tiny, delicate marine organisms, sea butterflies and sea angels, were found to be surprisingly resilient--having survived dramatic global climate change and Earth's most recent mass ...
- Insight from sports medicine leads to discovery about mussels in acidifying oceanon September 28, 2020 at 5:00 pm
Feeding rates of blue mussels slow down under ocean acidification conditions, and the cause may be the slowing beat of gill cilia, similar to a known response in human lung cells.
- Sentinels of ocean acidification impacts survived Earth's last mass extinctionon September 28, 2020 at 8:17 am
Two groups of tiny, delicate marine organisms, sea butterflies and sea angels, were found to be surprisingly resilient—having survived dramatic global climate change and Earth's most recent mass ...
- Oregon recognized as leader in efforts to stem climate and ocean changeson September 28, 2020 at 7:00 am
Oregon again was recognized as a leader in efforts to stem climate change and (OAH). The legislatively-created Oregon Coordinating Council on OAH recently was recognized for its efforts to guide ...
via Bing News