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DLR: cleaner aircraft emissions reduce the climate impact of contrail cirrus

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Impact of a reduction in initial ice crystal number, as may be caused by reduced soot emissions, on global contrail cirrus properties. Depending on the position of the sun and the ground, the clouds can trigger a local warming or cooling effect, with research work showing that the warming effect predominates globally.

Climate 278
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Obama climate plan calls for new fuel economy standards for heavy-duty vehicles post-2018; cleaner fuels and investment in advanced fossil energy

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Among the transportation-related elements of US President Barack Obama’s new climate action plan, which he is outlining today in a speech at Georgetown University, is the development of new fuel economy standards for heavy-duty vehicles post-2018. Earlier post.). A proposal for existing plants is due in 2014, with targeted file rule in 2015.

Obama 249
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Latest GHG Inventory shows California remains below 2020 emissions target; much steeper rate of GHG reductions required

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The California Air Resources Board released GHG emissions data for 2018 showing that emissions remain below 1990 levels but are effectively flat compared to 2017, while the economy grew by 4.3%. Source: California Air Resources Board (ARB). Total statewide 2018 GHG emissions were 425.3 million metric tons in 2017.

2020 221
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BloombergNEF: clean energy investment in developing nations slumps as financing in China slows; coal burn surges to record high

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New investment in wind, solar, and other clean energy projects in developing nations dropped sharply in 2018, largely due to a slowdown in China. The findings suggest that developing nations are moving toward cleaner power but not nearly fast enough to limit global CO 2 emissions. thousand terawatt-hours in 2018, up from 6.4

Coal 243
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Opinion: Uranium Prices Set To Double By 2018

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With prices set to double by 2018, we’ve seen the bottom of the uranium market, and the negative sentiment that has followed this resource around despite strong fundamentals, is starting to change. It’s impossible to find another natural resource that is so fundamentally necessary and yet has carried such negative sentiment as uranium.

2018 150
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California Air Resources Board posts revised draft of strategy to reduce “Super Pollutants”

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The California Air Resources Board (CARB) has posted a revised draft of California’s proposed Short-Lived Climate Pollutant (SLCP) Strategy. SLCPs are a category of pollutants which remain in the atmosphere for a relatively brief period, but have global warming potentials that are much higher than those of CO 2. Black carbon.

Pollution 150
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ICCT assesses impact of EV battery manufacturing life-cycle emissions debt; policy implications

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—Hall and Lutsey (2018). Hall and Lutsey 2018. Among the general findings from the analysis: Electric cars are much cleaner than internal combustion engine cars over their lifetime. Dale Hall and Nic Lutsey (2018) “ Effects of battery manufacturing on electric vehicle life-cycle greenhouse gas emissions”.

Emissions 270