Warning on the “other CO2 problem”: ocean acidification

The world’s marine ecosystems risk being severely damaged by ocean acidification unless there are dramatic cuts in CO2 emissions, warn scientists. More than 150 top marine researchers have voiced their concerns through the “Monaco Declaration”, which warns that changes in acidity are accelerating.

The declaration, supported by Prince Albert II of Monaco, builds on findings from an earlier international summit.

It says pH levels are changing 100 times faster than natural variability.

Based on the research priorities identified at The Ocean in a High CO2 World symposium, held in October 2008, the declaration states:

“We scientists who met in Monaco to review what is known about ocean acidification declare that we are deeply concerned by recent, rapid changes in ocean chemistry and their potential, within decades, to severely affect marine organisms, food webs, biodiversity and fisheries.“



It calls on policymakers to stabilise CO2 emissions “at a safe level to avoid not only dangerous climate change but also dangerous ocean acidification”.

The researchers warn that ocean acidification, which they refer to as “the other CO2 problem”, could make most regions of the ocean inhospitable to coral reefs by 2050, if atmospheric CO2 levels continue to increase.

The also say that it could lead to substantial changes in commercial fish stocks, threatening food security for millions of people.

“The chemistry is so fundamental and changes so rapid and severe that impacts on organisms appear unavoidable,“ said Dr James Orr, chairman of the symposium.

“The questions are now how bad will it be and how soon will it happen.“

Another signatory, Patricio Bernal, executive secretary of the UN Intergovernmental Oceanographic Commission, outlined how the marine research community intended to respond to the challenge.

“We need to bring together the best scientists to share their latest research results and to set priorities for research to improve our knowledge of the processes and of the impacts of acidification on marine ecosystems”.

Prince Albert II used the declaration to voice his concerns, adding that he hoped the world’s leaders would take the “necessary action” at a key UN climate summit later this year.

“I strongly support this declaration. I hope that it will be heard by all the political leaders meeting in Copenhagen in December 2009.“

MercoPress., 3 February 2009. Article.

0 Responses to “Warning on the “other CO2 problem”: ocean acidification”



  1. Leave a Comment

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.




Subscribe to the RSS feed

Follow AnneMarin on Twitter

Archives

Powered by FeedBurner

Blog Stats

  • 1,450,078 hits

OA-ICC HIGHLIGHTS

Ocean acidification in the IPCC AR5 WG II

OUP book