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US, China, and G-20 agree to work to global phase down of HFCs

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The US reached separate agreements with the G-20 and with China to address the rapid growth in the use and release of climate-damaging hydrofluorocarbons (HFCs). HFCs are potent greenhouse gases used in refrigerators, air conditioners, and industrial applications.

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Climate Talks End In Copenhagen Accord; Countries Settle On Non- Binding 2 ºC Warming Limit

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The accord calls for action to hold mean warming of the Earth’s surface to no more than 2 ºC above pre-industrial levels, but does not define reductions in greenhouse gases that might be employed to achieve that goal. The relative valuation of potential emissions offsets (e.g.

Climate 236
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Global billionaires unite in “Breakthrough energy coalition” to support development of zero-carbon energy

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As the UN climate conference COP21 opened in Paris, Bill Gates announced the formation of the “ Breakthrough energy coalition ”, an investment grouping of global billionaires focused on developing the technologies that will create a new zero-carbon energy mix. Xavier Niel, Founder, Iliad Group, France.

Energy 150
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TOAR shows present-day global ozone distribution and trends relevant to health; public database

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We created the largest database of surface ozone from hourly observations at more than 4,800 monitoring sites worldwide, and we’re making these data freely available to anyone who wants to investigate the impact of ozone on human health, vegetation, and climate. Owen Cooper.

Ozone 255
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Devil in the Details: World Leaders Scramble To Salvage and Shape Copenhagens UNFCCC Climate Summit

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At issue is the 2012 expiration of the Kyoto Protocol, a binding but effectively unenforceable 1997 treaty that had set greenhouse gas (GHG) emission reduction targets for 40 industrialized countries, referred to as Annex 1 countries, yielding an average GHG reduction of 5.2% by Jack Rosebro. ” [ 1 ].

Climate 236
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G20 Leaders Agree to Phase Out Fossil Fuel Subsidies

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Inefficient fossil fuel subsidies encourage wasteful consumption, distort markets, impede investment in clean energy sources and undermine efforts to deal with climate change. The inaugural meeting of the G-20 took place in Berlin, on December 15-16, 1999, hosted by German and Canadian finance ministers.

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PwC analysis finds meeting 2 C warming target would require “unprecedented and sustained” reductions over four decades

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—Leo Johnson, Partner, Sustainability and Climate Change, PwC. By contrast, the UK, France and Germany achieved record levels of annual carbon emissions intensity reductions, but were helped on by milder winters. Resilience will become a watch word in the boardroom—to policy responses as well as to the climate.