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How to think about vehicle bans: An update after two major European judicial decisions

In August and again in December of last year, I was asked to speak about the implications of the surprising surge in public announcements of future bans on certain types of vehicles. At the time, I...There has been a surprising surge in announcements by cities and national governments of future bans on certain types of vehicles. These bans are a signal of growing political will, impatience with...
Published 2018.05.02: Blog Post

Unique challenges and solutions to sustainable transport issues in Africa

The transport sector accounts for almost one quarter of all global greenhouse gas (GHG) emissions and is one of the main contributors to urban air pollution in most cities. African countries and...The transport sector accounts for almost one quarter of all global greenhouse gas (GHG) emissions and is one of the main contributors to urban air pollution in most cities. African countries and...
Published 2018.03.28: Blog Post

Peru workshop on fuel economy feebate system

On January 8-9, 2018, the Ministry of Environment of Peru held a workshop in Lima, Peru to discuss proposals for taxes and other incentives to promote cleaner and efficient vehicles in the country....
Published 2018.01.24: Event

ICCT wins 2017 Climate and Clean Air Award for Transformative Action

Bonn, November 12, 2017: The 2017 Climate and Clean Air Award for Transformative Action has gone to the International Council on Clean Transportation (ICCT), for its initiative to conduct checks of...
Published 2017.11.12: News

DO Wales 2016

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Published 2017.06.29: Event

Impacts and mitigation of excess diesel NOx emissions in 11 major vehicle markets

A new study published online May 15 in the journal Nature quantifies the global health and environmental burden of real-world diesel NOx emissions in 11 major vehicle markets. The study found that...
Published 2017.05.22: Event

A historical review of the U.S. vehicle emission compliance program and emission recall cases

Emission recalls are a critical aspect of vehicle emission compliance and enforcement programs. An emission recall is a repair, adjustment, or modification program conducted by a manufacturer to...
Published 2017.04.12: Publication

Leapfrogging an outdated standard puts India on par with global leaders in control of vehicle emissions

On September 16, 2016 the Government of India took an important step towards addressing the country’s severe air pollution problems with the final notification of Bharat Stage (BS) VI emission...The adoption of Bharat Stage VI emission standards will significantly reduce air pollutant emissions from vehicles sold in India beginning in 2020. However, changes in the final rule notification...
Published 2016.10.11: Blog Post

Reducing vehicle emissions in Turkey

Turkey is one of the largest vehicle manufacturing countries in the world, and the auto industry plays a key role in the Turkish economy. For Turkey, it is of particular importance to ensure that the...
Published 2016.08.17: Publication

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

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

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

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

Review of Beijing's comprehensive motor vehicle emission control programs

Transportation is a key contributor to air pollution in urban areas. Beijing, a city with historically poor air quality, has implemented new standards and programs to combat vehicular emissions....
Published 2015.11.05: Publication

Optimizing to the last digit: How taxes influence vehicle CO2 emission levels

In addition to vehicle CO2 emission standards imposed at the European Union level, a number of EU member states have put in place tax and other incentives to encourage consumers to buy more efficient...
Published 2015.10.20: Publication

FAQ: In-use NOx emissions from diesel passenger cars

As the story concerning in-use NOx emissions from diesel passenger vehicles continues to unfold, a number of questions concerning the ICCT's past and on-going research into discrepancies between...
Published 2015.09.25: News

[Press release] New ICCT study shows real-world exhaust emissions from modern diesel cars seven times higher than EU, US regulatory limits

On-road nitrogen oxides emission levels of modern diesel cars are on average about seven times higher than the limit set by the Euro 6 emission standard, which went into effect in September 2014....
Published 2014.10.11: News

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