22 Dec 2011:
Ocean Acidification Varies
Widely Across Globe, New Study Shows
The deployment of sensors in 15 regions of the world’s oceans shows an extremely wide variation
in how rapidly waters are becoming acidified, according to research conducted by the Scripps Institution of Oceanography. Scripps scientists have deployed more than 50 of the sensors, which measure pH and temperature in the top 230 feet of the ocean, as part of a continuing study to see how rising atmospheric CO2 levels are impacting the world’s oceans. Initial findings show great variation in ocean acidification. Around Antarctica and the Line Islands of the South Pacific, for example, there is limited variation in pH. But in regions where large upwellings bring CO2-laden water to the surface from the deep, such as off the coasts of California and the U.S. Pacific Northwest, the waters are more acidic.
Indeed, in some regions, Scripps scientists measured levels of acidity that were not expected to be reached until the end of the century, according to the study, published in the journal PLoS One
. Acidic waters can inhibit organisms, such as oysters and coral reefs, from forming shells. Scripps scientists said their long-term study will help document how marine organisms are responding to changes in ocean pH.
Yale Environment 360 is
a publication of the
Yale School of Forestry
& Environmental Studies
Yale Environment 360
articles are now available in Spanish and Portuguese on Universia
, the online educational network. Visit the site.
Business & Innovation
Policy & Politics
Pollution & Health
Science & Technology
Antarctica and the Arctic
Central & South America
A look at how acidifying oceans could threaten the Dungeness crab, one of the most valuable fisheries on the U.S. West Coast. Watch the video.
is now available for mobile devices at e360.yale.edu/mobile
An aerial view of why Europe’s per capita carbon emissions are less than 50 percent of those in the U.S. View the photos.
An indigenous tribe’s deadly fight to save its ancestral land in the Amazon rainforest from logging. Learn more.
video series looks at the staggering amount of food wasted in the U.S. – a problem with major human and environmental costs. Watch the video.
Residents of the Chocó Rainforest in Ecuador are choosing to plant cacao over logging in an effort to slow deforestation.
Watch the video.
Tribal people and ranchers join together to stop a project that would haul coal across their Montana land. Watch the video.