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In the land of the midnight sun, Arctic shipping is on the rise

The luxury cruise ship Crystal Serenity offers many excursions on its unprecedented 32-day voyage through the icy waters of the Northwest Passage. One of them was a recent visit to Shishmaref, Alaska...As we gain a more complete understanding of ship activity using the satellite AIS data, we can better estimate the environmental and economic effects of international shipping, especially in fragile...
Published 2016.08.29: Blog Post

Mexico City commits to a soot-free urban bus fleet

In Mexico City the summer rains have brought temporary relief from the choking, eye-watering, crisis-level air pollution of the spring. Driving restrictions have been lifted for private cars (...For any city wanting to reduce air pollution from vehicle emissions, buses are an obvious place to start. Mexico City has requested our support, and we will be developing a joint workplan, to kick...
Published 2016.07.28: Blog Post

Common ground on clean transportation

On June 29, 2016, President Obama, President Peña Nieto, and Prime Minister Trudeau laid out a formidable shared agenda at the North American Leaders’ Summit on a disparate set of issues that ranged...Aligning standards throughout North America allows the U.S., Mexico, and Canada to take advantage of the economic and market integration of the region to meet shared goals for climate, air quality...
Published 2016.07.14: Blog Post

China's latest step forward on vehicle emissions regulation

On June 6–7, the Eighth Round of the U.S.–China Strategic and Economic Dialogue was held in Beijing. The two nations are making remarkable progress toward reducing the environmental and energy impact...The newly announced implementation timeline of the China 6/VI vehicle emission standard will accelerate the introduction of the most stringent emission reduction requirements and advanced emission...
Published 2016.07.11: Blog Post

Opel's admissions of defeat device calibrations

A little while ago I blogged about the widespread practice by automakers in the EU of reducing nitrogen oxide (NOx) emission controls at ambient temperatures below 10 °C–17 °C and after a hot restart...Opel admits to reducing vehicle emission controls based on conditions other than ambient temperature or restart. Opel says its “engines are in compliance” in Europe. But, once again, they would not...
Published 2016.06.15: Blog Post

India heavy-duty fleet modernization program: A scrappage program combined with accelerated adoption of Bharat Stage VI emission standards

Despite the fact that there are far fewer heavy-duty trucks and buses than motorcycles and cars plying the roads in India, heavy-duty vehicles (HDVs) contribute the majority of transportation-related...
Published 2016.06.13: Publication

Just one more diesel car?

As the debate over local air quality intensifies in Delhi, the Supreme Court of India is considering whether to continue the restriction on sale of diesel cars with engines larger than two liters in...Another possible option beyond levying a punitive fee on diesel vehicles or banning their sale would be for diesel vehicle manufacturers to voluntarily agree to equip all new diesel vehicles sold in...
Published 2016.05.27: Blog Post

Liuhanzi Yang

Published 2016.05.24: Profile

Emissions inventory for agricultural tractors and construction equipment in India

In 2014, the World Health Organization announced that India’s cities were among the most polluted in the world. Mobile sources are major contributors to local air pollution due to the emissions from...
Published 2016.05.18: Publication

Jogos sujos: uma proposta de lei para revogar as restrições aos carros a diesel no Brasil

Coincidência ou não, enquanto os brasileiros estão distraídos pelo impeachment da presidenta Dilma Rousseff, tumultos políticos, recessão econômica, Olimpíadas e o Zika, uma comissão especial na...Enquanto a Europa e outros países lutam para controlar as emissões descontroladas dos carros a diesel, o Brasil—distraído pelo caos político, Jogos Olímpicos e o Zika—acabou de propor a revogação das...
Published 2016.05.06: Blog Post

A dirtier kind of Games: A proposal to lift restrictions on diesel cars in Brazil

Versão em Português Coincidence or not, while Brazilians are distracted by the impeachment of President Dilma Rousseff, other political turmoil, economic recession, the upcoming Olympics, and the...As Europe and other countries struggle to control crisis-level emissions from diesel cars, Brazil—wracked by political turmoil and distracted by the Olympics and the Zika virus—has just proposed...
Published 2016.05.05: Blog Post

Should Delhi ban diesels?

Next week the verdict will be in on whether Delhi Chief Minister Arvind Kejriwal achieved any meaningful reductions in vehicle emissions with his “odd-even” scheme to cut down on the number of...The health evidence on diesels justifies actions that extend restrictions on diesels until they are cleaner. The court should consider a new tax scheme on diesels to pay for their health damages or...
Published 2016.04.29: Blog Post

First look: Results of the German transport ministry's post-VW vehicle testing

In September 2015, shortly after it became known that Volkswagen applied illegal defeat devices in some of its diesel vehicles, the German Ministry for Transport (BMVI) commissioned a series of...Germany, the UK, and France last week released results of testing they commenced after VW admitted to using defeat devices to circumvent emissions tests. The situation seems even worse than expected...
Published 2016.04.25: Blog Post

Technical background on India BS VI fuel specifications

The proposed Bharat Stage (BS) VI regulation for on-road vehicles in India includes contains both emission standards for new vehicles as well as specifications for reference and commercial gasoline...
Published 2016.04.22: Publication

India Bharat Stage VI emission standards

On February 19, 2016, the Indian Ministry of Road Transport and Highways (MoRTH) issued a draft notification of Bharat Stage (BS) VI emission standards for all major on-road vehicle categories in...
Published 2016.04.22: Publication

Request for Proposals: Heavy-duty vehicle and engine testing, India

The ICCT is seeking proposals to test heavy-duty vehicles (HDVs) and engines in India. The testing data developed from this project will be used to support modeling in Autonomie, a dynamic vehicle...
Published 2016.04.20: News

A vision through the smog

Mexico City just experienced its first air pollution alert in more than a decade, and President Enrique Peña Nieto has asked SEMARNAT to do something. There are plenty of things to be done. A Supreme...Mexico City just experienced its first air quality alert in more than a decade. The emergency measures being called for aren't enough to fix the problem. Here's what should be done.
Published 2016.03.18: Blog Post

Deficiencies in the Brazilian PROCONVE P-7 and the case for P-8 standards

DOWNLOAD PORTUGUESE VERSION (PDF) In January 2012, Brazil implemented the PROCONVE P-7 emission standards for heavy-duty vehicles (HDVs) to replace the previous P-5 standards (Euro III-equivalent)....
Published 2016.03.11: Publication

Environmental risks of diesel passenger vehicles in Brazil

DOWNLOAD PORTUGUESE VERSION (PDF)   Although Brazil has restricted the sale of diesel passenger cars since the 1970s, an auto industry lobby has been pressuring the government to lift the...
Published 2016.03.11: Publication

Engine technology pathways for heavy-duty vehicles in India

The primary objective of this literature review is to provide a glimpse at technology changes for diesel and natural gas (NG) engines in the HDV space that are expected over the next 10 to 15 years...
Published 2016.03.10: Publication

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