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Study measures the effect of regional change in clouds caused by ships’ emissions; masking GHG warming

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This puffy line is not just exhaust from the engine, but a change in the clouds that’s caused by small airborne particles of pollution. Pollution from ships creates lines of clouds that can stretch hundreds of miles. The difference helps explain how much industrial pollution influences clouds. NASA Earth Observatory.

Emissions 223
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Perspective: The Role of Offsets in Climate Change Legislation

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This article shows that including offsets in climate change legislation would likely make an emissions program more cost-effective by: (a) providing an incentive for non-regulated sources to generate emission reductions; and (b) expanding emission compliance opportunities for regulated entities. Assuming the offset is legitimate—i.e.,

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WHO report urges greater attention to improved land use, rapid transit, cycling and walking to achieve health co-benefits from transport GHG emissions mitigation

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The review is the latest product of WHO’s Health in the Green Economy initiative, which is considering available evidence on health impacts from climate mitigation strategies for key economic sectors, as reviewed by the UN’s Intergovernmental Panel on Climate Change. million people annually.

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Climate Expert: Don't Call It Geoengineering

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The leaders of the world have just returned from the UN's latest climate change summit, COP26 , in which the countries that have signed on to the Paris Agreement upped their commitments to fight climate change. IEEE Spectrum : What role does Silver Lining play in climate research or advocacy? In 2015, the U.S.

Climate 144
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UNEP and partners launch Global Initiative for Resource-Efficient Cities; role of public transport

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The United Nations Environment Programme (UNEP) and partners have launched a new initiative that aims to reduce pollution levels, improve resource efficiency and reduce infrastructure costs in cities across the world. Up to 80% of the world population is expected to reside in cities by 2050.

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Marine Ecosystems Capture Carbon Emissions Equal to Near 50% of Emissions of Global Transport; UN Agencies Propose Blue Carbon Fund for Their Support

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A combination of reducing deforestation on land, allied to restoring the coverage and health of these marine ecosystems could deliver up to 25% of the emissions reductions needed to avoid dangerous climate change. Coastal waters account for just 7% of the total area of the ocean. Credit: Riccardo Pravettoni, UNEP/GRID-Arendal.

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Test of Planet-Cooling Scheme Could Start in 2022

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This question of whether climate change becomes so bad that we have to do something to dull its impacts and reduce human suffering is a very big one,” says Keutsch, an atmospheric chemist. But sulfate aerosols—the combination of particles and water—can destroy the planet-protecting ozone layer. Research takes a long time.

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