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Fast action on black carbon, ozone and methane could help limit global temperature rise to 2 degrees C

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The climate change benefit is estimated for a given year (2050) and human health and crop benefits are. Fast action on pollutants such as black carbon, ground-level ozone and methane may help limit near term global temperature rise and significantly increase the chances of keeping temperature rise below 2 °C (3.6 °F)—and

Ozone 218
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Cutting Non-CO2 Pollutants Can Delay Abrupt Climate Change; The Fast Action Climate Agenda

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Noting the references in scientific and policy literature to the need for fast-action mitigation to help avoid DAI and abrupt climate changes, the authors define “fast-action” to include regulatory measures that can begin within 2–3 years, be substantially implemented in 5–10 years, and produce a climate response within decades.

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International study identifies 14 key measures to reduce methane and black carbon emissions; reduction in projected global mean warming of ~0.5 °C by 2050

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Circle areas are proportional to values for (A and B) climate change, (C and D) human health (values for population over age 30), and (E and F) agriculture. Black carbon, a product of burning fossil fuels or biomass such as wood or dung, can worsen a number of respiratory and cardiovascular diseases. Source: Shindell et al.

Carbon 257
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Emissions of potent GHG HFC-23 have grown, contradicting reports of huge reductions

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However, levels have been soaring because it is vented to the atmosphere during the production of another chemical widely used in cooling systems in developing countries. Over the last two decades, scientists have been keeping a close eye on the atmospheric concentration of HFC-23, a hydrofluorocarbon (HFC) gas.

Emissions 199
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World Bank to focus on reducing short-lived climate pollutants; transport projects

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A new report prepared by the World Bank at the request of the G8 identifies ways that the World Bank can do more through its projects to reduce the emission of short-lived climate pollutants (SLCPs): black carbon, methane, tropospheric ozone, and fluorinated gases known as HFCs. Black carbon Climate Change Emissions'

Pollution 210
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Study Finds Current Swedish Biofuels Offer Major Climate Benefits; Biogas from Manure the Best

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The fuels studied were: biogas from sugar beet, ley crops, maize and waste products in the form of household waste, industrial waste and manure; biodiesel from rapeseed; ethanol from wheat and sugar beet; and ethanol from Brazilian sugar cane. Co-production of biogas and ethanol from wheat was also analyzed.

Climate 170
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California Air Resources Board posts revised draft of strategy to reduce “Super Pollutants”

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SLCPs may account for an estimated 40% of global warming, increasing the impacts of climate change. The major sources of methane in California are livestock (~30% of the state’s methane emissions), followed by landfills and oil and gas production. CO 2 remains in the atmosphere for up to a century.

Pollution 150