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Study finds rising temperatures increase risk of unhealthy ozone levels absent sharp cuts in precursors

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Ozone pollution across the continental United States will become far more difficult to keep in check as temperatures rise, according to new work led by the National Center for Atmospheric Research (NCAR). The RCPs were chosen to represent a broad range of climate outcomes, based on a literature review. Ozone formation.

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Study findings suggest that switching from coal to natural gas would do little for global climate

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The study will appear next month in the peer-reviewed journal Climatic Change Letters. Relying more on natural gas would reduce emissions of carbon dioxide, but it would do little to help solve the climate problem. However, the effects of natural gas on climate change have been difficult to calculate.

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Test of Planet-Cooling Scheme Could Start in 2022

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Up there, 10 to 50 kilometers above the Earth’s surface, ozone molecules absorb the sun’s ultraviolet light, protecting life far below. Even less is understood about the potential risks to people and the environment—could the particles deplete the ozone layer, for example, or significantly alter the weather? Research takes a long time.

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House Chairmen Waxman, Markey Release Draft of Energy and Climate Legislation; Among the Many Provisions Are Cap-and-Trade, Harmonization of CAFE and California Vehicle Regulations, and Low Carbon Fuel Standard

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The draft adds HFCs to the list of similar substances that EPA currently regulates because they deplete the ozone layer. The draft also provides that new source review does not apply to these global warming pollutants. Tags: Climate Change Emissions Policy. Ensuring Domestic Competitiveness.

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SCOPE Biofuels Project Releases Assessment on Environmental Effects of Biofuel Technologies

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In their paper on lifecycle analysis, Emanuela Menichetti and Martina Otto reviewed and assessed 30 LCA studies particularly those relating to the energy balance and greenhouse gas (GHG) emissions of biofuels produced from a range of crops and other biomass feedstocks using various conversion technologies. Lifecycle analysis. Howarth, R.W.,

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Here’s How We Could Brighten Clouds to Cool the Earth

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As we confront the enormous challenge of climate change, we should take inspiration from even the most unlikely sources. Take, for example, the tens of thousands of fossil-fueled ships that chug across the ocean, spewing plumes of pollutants that contribute to acid rain, ozone depletion, respiratory ailments, and global warming.

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