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Study finds that unregulated VSLS efficient at influencing climate through depletion of stratospheric ozone

Green Car Congress

Although halogens released from long-lived anthropogenic substances, such as chlorofluorocarbons (CFCs), are the principal cause of the recent depletion of stratospheric ozone, recent observations show that very short-lived substances (VSLS), with lifetimes generally under six months, are also an important source of stratospheric halogens.

Ozone 150
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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. C above pre-industrial levels. C above pre-industrial levels. In 2015, the U.S.

Climate 144
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Study finds some refrigerants less damaging to ozone layer can degrade to long-lived GHG CF4

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Some of the substitutes for ozone-damaging chemicals that being phased out worldwide under international agreements are themselves potent greenhouse gases and contribute to warming. Even as we move towards shorter-lived halocarbons for industrial use, during atmospheric degradation they can produce a long-lived atmospheric effect.

Ozone 150
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Emissions of potent GHG HFC-23 have grown, contradicting reports of huge reductions

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This gas has very few industrial applications. Starting in 2015, India and China, thought to be the main emitters of HFC-23, announced ambitious plans to abate emissions in factories that produce the gas. This would have been a big win for climate. —co-author Dr Matt Rigby.

Emissions 199
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WMO reports GHG concentrations at highest in 800K years

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ppm in 2015 because of a combination of human activities and a strong El NiƱo event. Concentrations of CO 2 are now 145% of pre-industrial (before 1750) levels, according to the Greenhouse Gas Bulletin. To optimize the use of solar, wind and hydropower production, new types of weather, climate and hydrological services are needed.

2016 186
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ARB releases proposed cap-and-trade regulation for comment; transportation fuels impacted in 2015

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The design of the California cap-and-trade program allows linkage with programs established by partner jurisdictions in the Western Climate Initiative (WCI) to create a regional market system. The program is expected to reduce GHG emissions between 18 and 27 MMTCO 2 e in 2020. Sector-Based Offset Credits.

2015 210
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Study: air pollution causes 800,000 extra deaths a year in Europe and 8.8 million worldwide

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Using a new method of modeling the effects of various sources of outdoor air pollution on death rates, the researchers found that it caused an estimated 790,000 extra deaths in the whole of Europe in 2015 and 659,000 deaths in the 28 Member States of the European Union (EU-28). million deaths in 2015. They focused particularly on PM 2.5

Pollution 320