World Video | Defence | Foreign Affairs | Natural Events | Trade | NZ in World News | NZ National News Video | NZ Regional News | Search

 


Greenhouse Gas Concentration Reached Record High in 2011

Greenhouse Gas Concentration Reached Record High in 2011, Says UN Report

New York, Nov 20 2012 - The amount of greenhouse gases in the atmosphere reached a new record high in 2011, according to a new United Nations report released today, ahead of the start next week of the latest round of global climate changes talks.

The UN World Meteorological Organization (WMO), which produced the 2011 Greenhouse Gas Bulletin, said that between 1990 and 2011, there was a 30 per cent increase in radiative forcing -- the warming effect on the Earth's climate -- because of carbon dioxide (CO2) and other heat-trapping long-lived gases.

Since the start of the industrial era in 1750, about 375 billion tonnes of carbon have been released into the atmosphere as CO2, primarily from fossil fuel combustion, the agency stated in a news release. About half of this carbon dioxide remains in the atmosphere, while the rest is absorbed by the oceans and terrestrial biosphere.

"These billions of tonnes of additional carbon dioxide in our atmosphere will remain there for centuries, causing our planet to warm further and impacting on all aspects of life on Earth," said WMO's Secretary-General, Michel Jarraud. "Future emissions will only compound the situation."

The Bulletin reports on atmospheric concentrations -- and not emissions -- of greenhouse gases. Emissions represent what goes into the atmosphere. Concentrations are what remain in the atmosphere after the complex system of interactions between the atmosphere, biosphere and the oceans.

Mr. Jarraud noted that, until now, carbon sinks have absorbed nearly half of the carbon dioxide humans emitted in the atmosphere, but this will not necessarily continue in the future.

Carbon sinks are any process, activity or mechanism that removes a greenhouse gas from the atmosphere. Forests, soils and oceans are natural sinks for CO2.

"We have already seen that the oceans are becoming more acidic as a result of the carbon dioxide uptake, with potential repercussions for the underwater food chain and coral reefs," said Mr. Jarraud.

The role of carbon sinks is "pivotal" in the overall carbon equation, according to WMO. If the extra CO2 emitted is stored in reservoirs such as the deep oceans, it could be trapped for hundreds or even thousands of years, whereas new forests retain carbon for a much shorter time span.

The agency noted that carbon dioxide is the single most important greenhouse gas emitted by human activities, and is responsible for 85 per cent of the increase in radiative forcing over the past decade. It is also the most important long-lived greenhouse gas, with the others being methane and nitrous oxide.

Greenhouse gases will feature prominently on the agenda of the UN Climate Change Conference that begins in the Qatari capital of Doha on Monday, and which brings together the 195 Parties to the UN Framework Convention on Climate Change (UNFCCC), the parent treaty of the 1997 Kyoto Protocol.

The Kyoto Protocol has been ratified by 193 of the UNFCCC Parties. Under the Protocol, 37 States, consisting of highly industrialized countries and countries undergoing the process of transition to a market economy, have legally binding emission limitation and reduction commitments.

The ultimate objective of both treaties is to stabilize greenhouse gas concentrations in the atmosphere at a level that will prevent dangerous human interference with the climate system.

For more details go to UN News Centre at http://www.un.org/news

ENDS

© Scoop Media

 
 
 
 
 
World Headlines

 

South Sudan: UN Agencies Reach More Than Half A Million

South Sudan: UN Agencies Reach More than Half a Million People with Life-Saving Aid More>>

Israeli Plans To Expand Its Illegal Settlement Enterprises

PLO Executive Committee member, Dr. Hanan Ashrawi, strongly denounced Israeli plans to expand its illegal settlement enterprise by approving the construction of 2,561 units in the settlement of Givat Hamatos. More>>

ALSO:

Ecuador: Villagers Plan To Seize Chevron's $106M Arbitral Award

QUITO, ECUADOR, Sep. 30 /CSRwire/ - In what could be a huge boost to their campaign to force Chevron to comply with a $9.5 billion environmental judgment in Ecuador, rainforest villagers plan to enforce a court order directing them to take possession ... More>>

World Grossly Ill-Prepared To Deal Ebola Outbreak

Leaders from Sierra Leone and Liberia, the two countries, along with Guinea at the frontlines of the battle against the unprecedented Ebola outbreak in West Africa, urged the General Assembly today ensure the United Nations mounted a stronger, better coordinated response “to end this grave threat to our collective survival.”More>>

ALSO:

  • Save The Children - Save the Children Builds Its First Ebola Treatment Centre


  • Israel’s Netanyahu Warns Against ‘Militant Islam’

    29 September 2014 – From the podium of the General Assembly today Israeli Prime Minister Benjamin Netanyahu warned the world of the grave threat he said it faced from militant Islam’s desire to dominate the planet, be they Sunni extremists or ... More>>

    Deputy PM of Syria Victims Of ISIL Brutality 'Waiting On Us To Act'

    As the Islamic State in Iraq and the Levant (ISIL) militant began carrying their slaughter in the Middle East, “they might have surprised many of the countries present here, but not…us,” the Deputy Prime Minister of Syria told the United Nations General Assembly, underscoring today that the time has come for the world to stand united and tackle the threat head-on.More>>

    Not A Single Child Untouched By Recent Gaza Conflict

    There is not a single child who has not been adversely affected by the recent conflict in Gaza, where children suffer from bedwetting, difficulties in sleeping, nightmares, a loss of appetite, and display more aggressive behaviour at school, an independent United Nations human rights expert said todayMore>>


    Ebola: UN Readies To Start Work As Death Toll Surpasses 3,000

    Ebola response: medical supplies, including protective equipment and essential medicine, are loaded onto trucks at the Lungi International Airport in Freetown, capital of Sierra Leone. Photo: UNICEF/Sulaiman Stephens More>>

    Get More From Scoop

     
     
     
     
     
    World
    Search Scoop  
     
     
    Powered by Vodafone
    NZ independent news