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  • Blog post

    World’s Carbon Budget to Be Spent in Three Decades

    EDITOR'S NOTE 11/18/13: After this blog post was published, the IPCC updated its Summary for Policymakers. The figures in this blog post have been updated to reflect new information.

    The Intergovernmental Panel on Climate Change’s (IPCC) Fifth Assessment Report (AR5) has delivered an overwhelming consensus that climate change impacts are accelerating, fueled by human-caused emissions. We may have just about 30 years left until the world’s carbon budget is spent if we want a likely chance of limiting warming to 2 degrees C. Breaching this limit would put the world at increased risk of forest fires, coral bleaching, higher sea level rise, and other dangerous impacts.

    When Will Our Carbon Budget Run Out?

    The international community has adopted a goal for global warming not to rise above 2°C compared to pre-industrial temperatures. Scientists have devoted considerable effort to understanding what magnitude of emissions reductions are necessary to limit warming to this level, as the world faces increasingly dangerous climate change impacts with every degree of warming (see Box 1).

    IPCC AR5 summarizes the scientific literature and estimates that cumulative carbon dioxide emissions related to human activities need to be limited to 1 trillion tonnes C (1000 PgC) since the beginning of the industrial revolution if we are to have a likely chance of limiting warming to 2°C. This is “our carbon budget” – the same concept as a checking account. When we’ve spent it all, there’s no more money (and the planet’s overdraft fees will be much more significant than a bank’s small charges for bounced checks).[^1]

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    The Network for China's Climate and Energy Information

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  • Blog post

    New Study Sheds Light on Methane Leakage from Natural Gas

    Natural gas wells represent a significant source of U.S. greenhouse gas (GHG) emissions, as many of them leak methane, which is more than 20 times more potent than carbon dioxide. But while scientists know that “fugitive methane” is a concern, there’s much uncertainty about the full extent of the problem. A new study from the University of Texas—developed in partnership with the Environmental Defense Fund and nine natural gas production companies (Anadarko, BG Group, Chevron, EnCana, Pioneer, Shell, Southwest, Talisman, ExxonMobil)—sheds some light on this perplexing issue.

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  • Publication

    Designing Greenhouse Gas Reporting Systems: Learning from Existing Programs

    Mandatory reporting programs help build a strong foundation to manage greenhouse gas (GHG) emissions and strengthen countries’ capacity to adequately tackle climate change. This working paper provides insight into the factors influencing the design and development of reporting programs and...

  • Blog post

    3 Big Takeaways from the New Global Commitment to Phase Down HFCs

    International climate action took an encouraging step forward today. President Obama reached agreements with the G-20 and with China to phase down the use of hydrofluorocarbons (HFCs), potent greenhouse gases used in appliances like refrigerators and air conditioners.

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  • Blog post

    New Report Connects 2012 Extreme Weather Events to Human-Caused Climate Change

    As extreme weather events like wildfires, heat waves, downpours, and droughts continue to make headlines in the United States and around the world, many have wondered what their connection is to climate change. A new report sheds some light, firmly drawing correlations between several extreme weather events in 2012 and human-induced warming.

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Designing the 2015 Climate Agreement: Options for Submitting “National Offers”

The UNFCCC negotiations are entering a crucial phase. Negotiators decided nearly two years ago to establish an international climate action agreement “with legal force” by 2015. How this agreement will be structured, though, remains to be seen.

WRI’s new working paper lays out the various options for designing the process for submitting "national offers," countries’ plans to reduce their respective greenhouse gas emissions. It will be critical for negotiators to focus on three key areas: the content of the offers, the timing and process for submitting them, and how they will be reviewed.

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A Pathway to a Climate Change Agreement in 2015: Options for Setting and Reviewing GHG Emission Reduction Offers

The UNFCCC Parties need to put forward emission reduction offers as part of the 2015 climate change agreement that is currently being negotiated. This paper suggests options for the design of this process, including the content of the offers and how they will be reviewed. Ensuring that this...

World’s Carbon Budget to Be Spent in Three Decades

EDITOR'S NOTE 11/18/13: After this blog post was published, the IPCC updated its Summary for Policymakers. The figures in this blog post have been updated to reflect new information.

The Intergovernmental Panel on Climate Change’s (IPCC) Fifth Assessment Report (AR5) has delivered an overwhelming consensus that climate change impacts are accelerating, fueled by human-caused emissions. We may have just about 30 years left until the world’s carbon budget is spent if we want a likely chance of limiting warming to 2 degrees C. Breaching this limit would put the world at increased risk of forest fires, coral bleaching, higher sea level rise, and other dangerous impacts.

When Will Our Carbon Budget Run Out?

The international community has adopted a goal for global warming not to rise above 2°C compared to pre-industrial temperatures. Scientists have devoted considerable effort to understanding what magnitude of emissions reductions are necessary to limit warming to this level, as the world faces increasingly dangerous climate change impacts with every degree of warming (see Box 1).

IPCC AR5 summarizes the scientific literature and estimates that cumulative carbon dioxide emissions related to human activities need to be limited to 1 trillion tonnes C (1000 PgC) since the beginning of the industrial revolution if we are to have a likely chance of limiting warming to 2°C. This is “our carbon budget” – the same concept as a checking account. When we’ve spent it all, there’s no more money (and the planet’s overdraft fees will be much more significant than a bank’s small charges for bounced checks).[^1]

Share

The Network for China's Climate and Energy Information

New Study Sheds Light on Methane Leakage from Natural Gas

Natural gas wells represent a significant source of U.S. greenhouse gas (GHG) emissions, as many of them leak methane, which is more than 20 times more potent than carbon dioxide. But while scientists know that “fugitive methane” is a concern, there’s much uncertainty about the full extent of the problem. A new study from the University of Texas—developed in partnership with the Environmental Defense Fund and nine natural gas production companies (Anadarko, BG Group, Chevron, EnCana, Pioneer, Shell, Southwest, Talisman, ExxonMobil)—sheds some light on this perplexing issue.

Share

Designing Greenhouse Gas Reporting Systems: Learning from Existing Programs

Mandatory reporting programs help build a strong foundation to manage greenhouse gas (GHG) emissions and strengthen countries’ capacity to adequately tackle climate change. This working paper provides insight into the factors influencing the design and development of reporting programs and...

Pages

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