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Study measures the effect of regional change in clouds caused by ships’ emissions; masking GHG warming

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This puffy line is not just exhaust from the engine, but a change in the clouds that’s caused by small airborne particles of pollution. Pollution from ships creates lines of clouds that can stretch hundreds of miles. The difference helps explain how much industrial pollution influences clouds. NASA Earth Observatory.

Emissions 223
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PSI team develops web tool for consumers to compare environmental impact of passenger cars in detail

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The system will graph lifecycle impact for a range of specified powertrains, for a large number of impact categories: Climate change [kg CO 2 -eq.]. Eutrophication of non-marine aquatic environments [kg N-eq.]. Eutrophication of non-marine aquatic environments [kg P-eq.]. Toxicity of marine aquatic environments [kg 1,4-DC-eq.].

Mariner 435
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ICCT finds growth in shipping in Arctic could increase pollutant emissions 150-600% by 2025 with current fuels

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Comparison of the potential reduction in emissions with the application of lower sulfur 0.5% While that report projected vessel activity, it did not explore the environmental impacts of increased shipping in terms of air emissions or the potential climate impacts from increases in short-lived climate pollutants such as black carbon.

Pollution 150
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Scripps research ship fueled by 100% NEXBTL renewable diesel for 1 year; emissions analysis

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All the while, Russell and her team used instruments installed on board to continuously measure pollutants such as carbon monoxide (CO) and nitrogen oxides (NO x ), organic and black carbon aerosols, and engine performance to characterize differences between conventional and renewable fuels.

Renewable 150
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Study on Greenhouse Gas Emissions from Global Cities Highlights Importance of Geophysical and Technical Factors

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An international study of 10 global cities found that a balance of geophysical factors (climate, access to resources, and gateway status) and technical factors (power generation, urban design, and waste processing) determine the greenhouse gas emissions (GHGs) attributable to cities. Tonnes CO 2 e/capita. Credit: ACS, Kennedy et al.

Emissions 199
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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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Up to 77% of the world’s energy supply could be met by six key renewables by mid-century under the most optimistic scenario if backed by the right enabling public policies, according to a new report by more than 120 researchers working with the Intergovernmental Panel on Climate Change (IPCC). Wind energy, including on- and offshore systems.

Renewable 218
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Final session on international mercury convention this week expected to culminate in agreement; UNEP Global Mercury Assessment 2013 finds industrial source Hg emissions may be rising

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Comparison of Hg emissions in 2005 and 2010, by selected sector and region. Apart from contaminated sites, the mercury pollution detected today is often found in locations very far away from its original source. Mercury concentrations in the oceans and in marine animals have risen due to anthropogenic emissions. Source: UNEP.

Mercury 262