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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. National benefits of the CH 4 plus BC measures versus the reference scenario.

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Low-lying and other vulnerable countries calling for fast action on non-CO2 global warming pollutants

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Led by the tiny Pacific island of the Federated States of Micronesia, a growing group of low-lying islands and other vulnerable countries are calling for fast action on the approximately 50% of global warming that is caused by pollutants other than carbon dioxide (CO 2 ). The next round of UN climate negotiations begins in Cancun today.

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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. and THC, less CO than PET-4S) and climate benefits (lower fuel consumption, less GWC than CNG-2S). Fuel-based particulate matter emission factors (A: PM 2.5 Click to enlarge.

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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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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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2018 Environmental Performance Index: Air quality top public health threat

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Switzerland’s top ranking reflects strong performance across most issues, especially air quality and climate protection. In general, high scorers exhibit long-standing commitments to protecting public health, preserving natural resources, and decoupling greenhouse gas (GHG) emissions from economic activity. 2018 EPI Trends.

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