Act Fast To Curb Global Warming, Or Extract CO2 From Air - UN

Posted by Joseph R. Fonseca
Sunday, April 13, 2014

 Faster action is needed to keep global warming to agreed limits and delays until 2030 could force reliance on technologies to 

extract greenhouse gases from the air, a U.N. report said on Sunday.
The study, drawing on the work of more than 1,000 experts, said a shift from fossil fuels to low-carbon energy such as wind, 
solar or nuclear power was affordable and would shave only about 0.06 percentage point a year off world economic growth.
"We have a window of opportunity for the next decade, and maximum the next two decades" to act at moderate costs, said Ottmar 
Edenhofer, co-chair of a Berlin meeting of the Intergovernmental Panel on Climate Change (IPCC).
"I'm not saying it's costless. I'm not saying climate policy is a free lunch. But it's a lunch worthwhile to buy," he said.
The report, endorsed by governments, is meant as the main scientific guide for nations working on a U.N. deal to be agreed in 
late 2015 to rein in world greenhouse gas emissions that have hit repeated highs, led by China's industrial growth.
Governments have promised to limit temperature rises to a maximum 2 degrees Celsius (3.6 Fahrenheit) above pre-industrial 
times to avert ever more heat waves, floods, droughts and rising sea levels that the IPCC says are linked to man-made 
IPCC scenarios showed that world emissions of greenhouse gases would need to peak soon and tumble by between 40 and 70 
percent from 2010 levels by 2050, and then close to zero by 2100, to keep temperatures below 2C.
Such cuts are far deeper than most governments are planning.
"Ambitious mitigation may even require removing carbon dioxide from the atmosphere," the IPCC said. Delay in acting to cut 
emissions until 2030 would force far greater use of such technologies, a 33-page summary for policymakers said.
If countries delay, the world will have to deploy little-tested options, said Edenhofer, a German scientist from the Potsdam 
Institute for Climate Impact Research.
One method mentioned by the IPCC is to burn wood, crops or other biomass to generate electricity and capture the greenhouse 
gases from the exhaust fumes and bury them underground.
The experimental technology would reduce the amount of carbon in a natural cycle of plant growth and decay. But there are 
risks, for instance that vast areas of land will be needed to grow biomass, displacing crops and pushing up food prices.
Simpler methods to extract greenhouse gases from the air are to plant trees, which soak up greenhouse gases as they grow.
The IPCC report is the third and final part of a massive United Nations series, updating science for the first time since 
2007. A summary of findings will be issued in October.
The U.N.'s climate chief, Christiana Figueres, said the world should step up action to cut emissions. "We cannot play a 
waiting game where we bet on future technological miracles to emerge and save the day," she said in a statement.
U.S. Secretary of State John Kerry said that every year the world defers action, the costs only grow.
"These technologies can cut carbon pollution while growing economic opportunity at the same time," he said in a statement. 
"This report makes very clear we face an issue of global willpower, not capacity."
The IPCC says it is at least 95 percent probable that man-made emissions, rather than natural variations, are the main cause 
of warming. But many voters are doubtful and few governments have policies consistent with a 2C target.
Low-carbon energies, which accounted for 17 percent of world energy supplies in 2010, would have to triple or quadruple their 
share by 2050, displacing conventional fossil fuels as the top source of energy, IPCC scenarios showed.
Low-carbon energy can include coal-, natural gas or oil-fired power plants if they use carbon capture and storage (CCS) to 
bury emissions underground. That technology, however, is mostly experimental.
Saskatchewan Power Corp in Canada will start a $1.35 billion Boundary Dam coal-fired CCS project this year, capturing a 
million tonnes annually of carbon dioxide in what it says is the world's first post-combustion coal-fired CCS project.
Oil and gas firms say they are tackling global warming. On March 31, Exxon Mobil Corp said that all energy sources, including 
fossil fuels, had to be exploited to meet growing world demand.
Environmentalists said the focus should be on shifting to renewables rather than nuclear power or CCS. "We need to put our 
money into the future ... with a focus on renewables and energy efficiency," said Samantha Smith of the WWF conservation 
(Reporting by Alister Doyle; Editing by Lisa Shumaker)
Maritime Reporter September 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds


GTT Inks Framework Partnership Deal with CERN

GTT, a designer of membrane containment systems for the maritime transportation and storage of liquefied natural gas (LNG), has signed a Framework Partnership Agreement

LNG Tanker Smash Sinks Cargo Ship

The 2002-built, 8,850-dwt freighter Flinterstar is owned by Dutch shipping firm Flinter has sank after colliding nearly head on with the Marshall Islands-flagged

Finland Scraps LNG Terminal Plan

Finnish gas utility Gasum has abandoned its plans to build the Finngulf liquefied natural gas  (LNG) import terminal in Finland with an offshore pipeline connection


Singapore Delegation Visits ACE Winches

ACE Winches hosted a delegation from SPRING Singapore to its Towie Barclay Works facility for a visit to share an overview of its products and services, including

Mercury Marine, FPT Partner for Diesel Engine Launch

Mercury Marine informs it has signed a supply agreement with FPT Industrial to make the FPT 6.7L mechanically fuel injected NEF engines available for sale in global markets.

Steel Cut on UK Navy’s Newest Warship

Construction has begun on a new warship for the U.K. Royal Navy as the Minister of State for Defense Procurement, Philip Dunne MP cut the first steel in Glasgow today.

Maritime Careers / Shipboard Positions Maritime Security Naval Architecture Navigation Pod Propulsion Port Authority Ship Electronics Ship Repair Shipbuilding / Vessel Construction Winch
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.2624 sec (4 req/sec)