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17 April 2014 12:48 pm ,
Vol. 344 ,
Officials last week revealed that the U.S. contribution to ITER could cost $3.9 billion by 2034—roughly four times the...
An experimental hepatitis B drug that looked safe in animal trials tragically killed five of 15 patients in 1993. Now,...
Using the two high-quality genomes that exist for Neandertals and Denisovans, researchers find clues to gene activity...
A new report from the Intergovernmental Panel on Climate Change (IPCC) concludes that humanity has done little to slow...
Astronomers have discovered an Earth-sized planet in the habitable zone of a red dwarf—a star cooler than the sun—500...
Three years ago, Jennifer Francis of Rutgers University proposed that a warming Arctic was altering the behavior of the...
- 17 April 2014 12:48 pm , Vol. 344 , #6181
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The Emissions Quartet: Report Outlines Four Climate Actions Nations Can Take Now
11 June 2013 11:50 am
LONDON—Governments shouldn't wait for a proposed international climate deal to take hold in 2020—they can take four steps right away to curb carbon emissions, argues a new report from a global energy think tank. By implementing the quartet of policies by 2015, nations could buy "precious time while international climate negotiations continue," says economist Fatih Birol, the lead author of a report released here yesterday by the International Energy Agency (IEA).
At a U.N. meeting now under way in Bonn, envoys are discussing a climate change agreement that they hope to strike by 2015 and put into action in 2020. But average global temperatures will increase dramatically if nations just sit and wait until then, concludes the report, Redrawing the Energy-Climate Map. "[T]he path we are currently on is … likely to result in a temperature increase of between 3.6 °C and 5.3 °C" by the end of the century, said IEA Executive Director Maria van der Hoeven in a statement. That's well above the 2° rise that many governments consider acceptable.
To hold any increase within that 2° range, IEA identifies four short-term remedies that should be implemented by 2015:
- aggressive energy efficiency measures in buildings, industry, and transport;
- limiting the use of coal-fired power stations;
- curbing the release of methane into the atmosphere; and
- reducing subsidies for fossil fuel consumption.
Together, these measures could reduce emissions from energy use by about 3.1 gigatons of carbon-dioxide equivalent by 2020, the authors argue. And taking action sooner than later could save money: Investing in a low carbon economy now would cost about $1.5 trillion, the report finds, but putting off similar investments until 2020 could cost as much as $5 trillion.
The report notes that although energy-related carbon emissions have recently declined in the United States and Europe, they are increasing globally. Last year, IEA estimates that global emissions of carbon dioxide from the energy sector rose 1.4% to a record level of 31.6 gigatons. China remains the number one emitter, responsible for about one-quarter of the carbon dioxide entering the atmosphere. China's emissions jumped to a record 300 million tons in 2012, although the rate of increase was the lowest the country has seen in a decade.
Such numbers highlight "the urgency of a concerted international focus on reducing emissions," says John Topping, founder and chief executive of the Climate Institute in Washington, D.C. One high-profile target, he says, should be reducing emissions of tiny soot particles, known as black carbon, that don't last long in the atmosphere but have an outsize impact on warming.