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Analysis finds air-quality justification for CNG vehicle conversion in developing cities, despite negative climate impact

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Impact pathway approach for modeling policy interventions in (a) air quality and (b) climate impacts. An analysis by a team in Bangladesh found large air quality and associated health benefits accruing to the residents of Dhaka (the capital of Bangladesh) as a result of the rapid conversion of the motor vehicle fleet to CNG.

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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. The team considered about 400 emission control measures to reduce these pollutants by using current technology and experience. Source: Shindell et al. Click to enlarge.

Carbon 257
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ADB Transport Forum: shift to greener transport in Asia key to global sustainability; investment of $2.5T needed by 2020

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Asia must scale up sustainable transport development or face a bleak future of congested roads, pollution, ill health and economic damage, which could have ripple effects around the world, the third ADB (Asian Development Bank) transport forum heard earlier this month in Manila.

Asia 218
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A Bamboo Carbon Filter for Diesels Could Reduce Emissions

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Although the pollutant emissions of a diesel engine are less than those of a gasoline one, it still emits carcinogens, nitrous oxides, and soot. A carbon-based particulate filter Diesel engines produce more polluting particulate matter than gas engines. Older models don’t even have the emission-control features that newer ones do.

Carbon 123
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UN Environment report says national GHG pledges only bring one-third of reductions needed for Paris Agreement

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The report also covers an assessment of the potential contribution from reductions in short-lived climate pollutants (SLCPs). This has raised hopes that emissions have peaked, as they must by 2020 to remain on a successful climate trajectory. These six present a combined poten al of up to 22 GtCO 2 e per annum.

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U.K. Startup’s Digital Dyeing Printers Save Energy, Water

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He had created Xennia Technology as well, whose inkjet technologies revolutionized other highly polluting processes, such as the surface treatment for ceramic tiles. Dyeing also generates 20 percent of industrial water pollution (the second main cause on a global level). gigatons of carbon dioxide by 2050. Here we have a revolution.

Water 91
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New international Climate and Clean Air Coalition to focus on reduction of short-lived climate pollutants

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Global benefits from full implementation of measures for reduction of short-lived climate pollutants in 2030 compared to the reference scenario. The climate change benefit is estimated for a given year (2050) and human health and crop benefits are. for 2030 and beyond. Source: UNEP. Click to enlarge. Earlier post.).

Climate 210