Free Newsletters - Space News - Defense Alert - Environment Report - Energy Monitor
. Earth Science News .




WATER WORLD
World's coral reefs at risk
by Staff Writers
Cairns, Australia (UPI) Jul 11, 2012


disclaimer: image is for illustration purposes only

Most of the world's coral reefs face devastation without global action to reduce carbon dioxide emissions, scientists warn.

A consensus statement signed by more than 2,500 marine scientists and presented this week at the 12th International Coral Reef Symposium in Cairns, Australia, says by the end of this century CO2 emissions at the current rate will warm sea surface temperatures by at least 2-3 degrees Celsius, raise sea levels by as much as 1.7 meters, reduce ocean pH from 8.1 to less than 7.9 and increase the frequency and intensity of storms.

"This combined change in temperature and ocean chemistry has not occurred since the last reef crisis 55 million years ago," the scientists' statement said.

They estimate reefs provide $170 billion to $375 billion annually in goods and services.

But about 25 percent to 30 percent of the world's coral reefs are already severely degraded by land-based local impacts and from over-harvesting, the scientists said.

"A concerted effort to preserve reefs for the future demands action at global levels, but also will benefit hugely from continued local protection," they wrote.

"Rising sea levels, more intense storms, changes in ocean chemistry due to air and water pollution -- all these stress coral reefs," said Steve Palumbi, an expert on corals with the California-based Center for Ocean Solutions and a chief organizer for the consensus statement.

"Because of the global origin of climate change, the only way to tackle this is through a worldwide effort," he said.

More than 1,200 representatives from more than 80 countries attended the coral reef symposium, which occurs every four years.

Another report released separately at the symposium says more than 85 percent of the reefs in the Coral Triangle region -- covering Indonesia, Malaysia, the Philippines, Papua New Guinea, East Timor and the Solomon Islands -- are threatened by overfishing, watershed-based pollution and coastal development.

Dubbed the "Amazon of the Seas," the Coral Triangle represents nearly 30 percent of the world's coral reefs and is home to more than 3,000 species of fish, says the report by the World Resources Institute in collaboration with the United States Agency for International Development Coral Triangle Support Partnership.

More than 130 million people living in the region rely on reef ecosystems for food and employment as well as tourism revenue.

"The influence of coral reefs on the most important aspects of people's lives cannot be overstated," said Katie Reytar, research associate at WRI and a lead author of the report.

"The influence extends far beyond the Coral Triangle to people around the world who benefit from the fisheries, tourism, medicines, and numerous other services that reefs provide."

.


Related Links
Water News - Science, Technology and Politics






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News





WATER WORLD
Scientists Discover New Trigger for Immense North Atlantic Plankton Bloom
Washington DC (SPX) Jul 11, 2012
On this July 4th week, U.S. beachgoers are thronging their way to seaside resorts and parks to celebrate with holiday fireworks. Across the horizon and miles out to sea toward the north, the Atlantic Ocean's own spring and summer ritual is unfolding: the blooming of countless microscopic plant plankton, or phytoplankton. In what's known as the North Atlantic Bloom, an immense number of phytoplan ... read more


WATER WORLD
Japan pushes ASEAN to lift export restrictions

Report faults Fukushima response

Fukushima was 'man-made' disaster: Japanese probe

Aussie patrol boats are 'under pressure'

WATER WORLD
ESA's Clean Space targets orbital debris and greener environment

Metamolecules that switch handedness at light-speed

Satellite for SES Beginning Post-Launch Maneuvers

New reporter? Call him Al, for algorithm

WATER WORLD
Scientists Discover New Trigger for Immense North Atlantic Plankton Bloom

World's coral reefs at risk

30% of fish stocks overexploited: UN agency

Eddies, not sunlight, spur annual bloom of tiny plants in North Atlantic

WATER WORLD
Argentina court upholds glacier protections against mining

Study: Wrong diet doomed 1912 polar try

Scientists to produce first 3-D models of Arctic sea ice

Canada builds up arctic region defenses

WATER WORLD
South African farmer equips sheep with cell phones

Study serves up healthy choice of rice

Brazil has laws that protect against "Big Food" and "Big Snack"

What's cooking? The UK's potential food crisis

WATER WORLD
Russian flood victims pick through damage

Russia mourns flood dead as questions mount

Russian official sacked over slack flood response

Indian floods kill threatened rhinos

WATER WORLD
War vets threaten Angola elections over unpaid pensions

Mali to form 1,200-strong elite force to protect transition

UN soldier dies as DR Congo rebels take Uganda border post

Developing world has less than five percent chance of meeting UN child hunger target

WATER WORLD
Seabirds studied for clues to human aging

Hong Kong's land shortage forces bereaved to sea

Diet of early human relative Australopithecus shows surprises

Outside View: 18th-century words for today




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement