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WHO: Air pollution levels rising in many of the world’s poorest cities

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More than 80% of people living in urban areas that monitor air pollution are exposed to air quality levels that exceed World Health Organization (WHO) limits, according to the organization. Global urban air pollution trends. While all regions of the world are affected, populations in low-income cities are the most impacted.

Pollution 150
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CARB approves $423M plan to mitigate harm from Volkswagen defeat devices; significant investments in heavy-duty vehicles and equipment sectors

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The California Air Resources Board (CARB) approved a plan to mitigate statewide harm from more than 10,000 tons of smog-causing pollutants released in the state due to Volkswagen’s (VW) use of illegal “defeat devices” in diesel passenger cars. As designed, the plan approved today invests about 50% of the available funds in those communities.

Ozone 277
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WHO data: global annual PM10 increased by 6% during recent 3-year period; based on data from 851 cities

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Air quality in most cities worldwide that monitor outdoor (ambient) air pollution fails to meet World Health Organization (WHO) guidelines for safe levels, putting people at additional risk of respiratory disease and other health problems, according to WHO’s expanded ambient (outdoor) air pollution (AAP) in cities database 2014.

Global 239
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Cutting Non-CO2 Pollutants Can Delay Abrupt Climate Change; The Fast Action Climate Agenda

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2009), reproduced from Ramanathan and Feng (2008) Click to enlarge. With indoor air pollution killing 1.6 Biochar comes from cooking biomass waste at low temperatures with minimal oxygen (pyrolysis). From Molina et al. Ramanathan. Tropospheric ozone. It also lowers crop yields.

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Engineers confirm feasibility of aircraft regenerative braking from landing gear

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The energy produced by a plane’s braking system during landing—currently wasted as heat produced by friction in the aircraft’s disc brakes—would be captured and converted into electricity by motor-generators built into the landing gear. In the future this technology could significantly reduce the need to do that.

Engine 236
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PNNL study finds algal oil could replace 17% of US petroleum oil imports

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Wigmosta and his co-authors provide the first in-depth assessment of America’s algal biofuel potential given available land and water. imported in 2008 for transportation fuels, and it could be grown on land roughly the size of South Carolina. Algae also digest nitrogen and phosphorous, which are common water pollutants.

Oil 281
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Report for IPCC finds renewables could supply up to 77% of global energy by 2050 under most optimistic scenario; need for enabling public policies and investments

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Range in recent levelized cost of energy for selected commercially available RE technologies in comparison to recent non-renewable energy costs. 77% is up from just under 13% of the total primary energy supply of around 490 Exajoules in 2008. Technology subcategories and discount rates were aggregated for this figure. Source: SRREN.

Renewable 218