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Rolls-Royce introducing completely integrated MTU marine hybrid propulsion systems as of 2020

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Rolls-Royce is planning to test a new MTU hybrid system incorporating Series 2000 engines in a yacht in 2019. The combination of diesel engines and electric motors, in addition to batteries, will offer our customers significant benefits in a variety of marine applications.

Mariner 225
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PSI team develops web tool for consumers to compare environmental impact of passenger cars in detail

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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.]. Toxicity of non-marine aquatic environments [kg 1,4-DC-eq.]. Depletion of fresh water reserves [m 3 ]. Human toxicity [kg 1,4-DC-eq.].

Mariner 435
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MIT study says combustion emissions cause ~200,000 premature deaths/year in US; vehicles and power generation top sources

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Annual average concentrations of fine particulates from US sources of combustion emissions from (a) electric power generation; (b) industry; (c) commercial and residential sources; (d) road transportation; (e) marine transportation; (f) rail transportation; (g) sum of all combustion sources; (h) all sources. Source: MIT. Click to enlarge.

MIT 378
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Study finds that worldwide SO2 emissions rose between 2000-2005 after decade of decline; China, shipping topped growth

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Global sulfur dioxide (SO 2 ) emissions peaked in the early 1970s and decreased until 2000, with an increase in recent years due to increased emissions in China, international shipping, and developing countries in general, according to a new analysis appearing in the open access journal Atmospheric Chemistry and Physics. Credit: Smith et al.

2005 186
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US EPA Reports National Trends Show Improvements in Air Quality

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Since 1990, nationwide air quality has improved significantly for the six common air pollutants: ground-level ozone; particle pollution; lead; nitrogen dioxide; carbon monoxide; and sulfur dioxide, according to the US Environmental Protection Agency (EPA) report “Our Nation’s Air - Status and Trends through 2008”. since 2000), by 19%.

EPA 186
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Study finds paved surfaces in Houston worsen air quality

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New research by a team from the US, China and Japan focusing on the Houston, Texas area suggests that widespread urban development alters weather patterns in a way that can make it easier for pollutants to accumulate during warm summer weather instead of being blown out to sea. ““The very existence of the Houston area favors stagnation.”

Houston 247
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ICCT study confirms feasibility of implementing IMO Tier III NOx standards using SCR; fuel efficiency gains as well

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The study undercuts arguments in favor of a proposal to delay implementation of the Tier III standard by five years to 2021, which will be taken up at next week’s meeting of the IMO’s Marine Environmental Protection Committee (MEPC). Approximately 1,250 SCR systems have been installed on marine vessels in the past decade.

Standards 218