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As the world rapidly becomes more motorized and more urban, it faces an increasingly urgent dilemma: how to move people efficiently while improving air quality and reducing climate impacts. In high-...It is possible to mitigate climate change and lower health impacts through less reliance on private automobiles, reduced urban sprawl, higher rates of public transit, and stringent vehicle emission...

Among the biggest stories of 2014 was the crash in global oil prices. Just when it looked like the world had started to take $100/barrel oil for granted, prices plunged by 50 percent. Some speculated...The global vehicle market continued its strong uptake of EVs in 2014, despite the collapse in oil price. 

Over the past two weeks, former CCTV reporter Chai Jing’s documentary “Under the Dome – Investigating China’s Smog” caused a sensation in China and the rest of the world. We were (naturally)...China is in the process of amending its Clean Air Law. Experience with the CAA highlights some key principles that can help give environmental agencies the teeth they need.

Heavy-duty vehicles built and certified in conformity to Euro IV and V emissions standards frequently do not achieve the real-world NOx emissions expected under those standards. Now data is becoming...

On-board diagnostic (OBD) systems monitor the performance of engine and aftertreatment components, including those responsible for controlling emissions. The OBD system is designed to help ensure...

At the UN Secretary-General’s Climate Summit in New York City September 23, countries, cities, non-state organizations and private-sector entities will commit to scale up actions to mitigate short-...

In this study published earlier this year we ranked electric-vehicle market shares in 12 regions in 2012 and 2013 and summarized tax credits and other incentives available to EV buyers. But policies...The first six months of 2014 saw an interesting divergence in the top two EV markets, a big sales jump in Sweden, and steady-state to modest market growth elsewhere. So, what's going on? Let's take a...

On May 7, China’s Ministry of Industry and Information Technology (MIIT) released its proposed Enforcement Rule for New Passenger Car Corporate-Average Fuel Consumption Standard for public comment....China’s Ministry of Industry and Information Technology (MIIT) has released its proposed Enforcement Rule for New Passenger Car Corporate-Average Fuel Consumption Standard for public comment. One...

本报告是国际清洁交通委员会（ICCT）对广东省实施更加严格的新车排放与燃油质量标准进行的成本效益分析。该报告对未来污染排放、健康与气候影响、以及相关成本进行预测分析。 分析结果表明，在广东提前实施国5/V（轻型车/重型车）排放标准和超低硫燃油标准可以迅速减少来自机动车的污染排放。污染排放的下降将减轻空气污染，提高公共健康，同时降低了影响气候变化污染物的排放。运用标准成本效益法，...