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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. In addition, they darken ice and snow, reducing their reflectivity and hastening global warming. Source: Shindell et al. Click to enlarge.

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Hadley Centre: Average 4 C Warming Could Happen Within a Human Lifetime, With Even Greater Warming in Many Regions

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One of the UK’s leading climate scientists has presented new research findings on the increasing potential for a 4 degrees Celsius (7.2 °F) F) rise in global temperatures if the current high emissions of greenhouse gasses continue. Source: Met Office. Click to enlarge.

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Study of emissions from CNG- and gasoline-fueled autorickshaws suggests measurements and data, not assumptions, should drive policy

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mass, B: organic carbon fraction (OC/PM), C: elemental carbon fraction (EC/PM)), global warming commitment (D: GWC-Kyoto, E: GWC-All), and F: fuel consumption. Grieshop, Milind Kandlikar (2011) Climate and Health Relevant Emissions from in-Use Indian Three-Wheelers Fueled by Natural Gas and Gasoline. Credit: ACS, Reynolds et al.

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ADB draft report says 3B Asians could become affluent by 2050; significant challenges

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The draft report says that as the global economy’s center of gravity shifts toward Asia, the region could account for about half of global output in 2050, up from the current 27%, as well as half of global trade and investment. If these events occur, Asia would account for only 32%, or $61 trillion, of global GDP in 2050.

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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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2018 Environmental Performance Index: Air quality top public health threat

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In general, high scorers exhibit long-standing commitments to protecting public health, preserving natural resources, and decoupling greenhouse gas (GHG) emissions from economic activity. India and Bangladesh come in near the bottom of the rankings, with Burundi, Democratic Republic of the Congo, and Nepal rounding out the bottom five.

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