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International shipping is commonly considered the most efficient and lowest-carbon transport mode, and is also seen as having significant potential remaining to reduce emissions still further. This...

Vessel speed reduction, or "slow steaming," is both a real-world industry trend and a potential avenue for new policy. Researchers at CE-Delft, the University of Southampton, and the ICCT sought to...

In March the U.S. National Research Council released a comprehensive study of the technology potential for cutting oil consumption and GHG emissions by 80% across the U.S. light-duty vehicle fleet in...

This webinar will focus on the results of the Global transportation energy and climate roadmap, a study that evaluates the impact of transportation policies on worldwide oil consumption and...

The ICCT has joined a study, led by the Environment Defense Fund, that seeks to quantify the amount of methane emissions from the operation of natural gas fleet vehicles fueled by compressed or...

Last week, the U.S. National Research Council released a comprehensive study of the technology potential for cutting oil consumption and GHG emissions by 80% across the U.S. light-duty vehicle fleet... A recent NRC study assesses technically and economically feasible efficiency improvements we could get in both conventional and advanced LDVs over the next few decades. The question is will we force...

[For immediate release: 20 March 2013] On Monday, the U.S. National Research Council released a comprehensive study of the technology potential for cutting oil consumption and GHG emissions by 80%...

By now everyone who wants to know does know that President Obama has promised “executive actions” on climate change if Congress continues to evade the problem. That has naturally re-energized... Heavy-duty vehicles account for 6% of total US GHG emissions—not as juicy a target as the one-third that come from power plants, but significant enough to merit a real focus this term.

The final frontier for emissions control may be international shipping, which operated independent of controls on its engine exhaust emissions until just three years ago, when regulations on the... A new study indicates that stringent control of black carbon from ships in Arctic waters could cut warming impacts in the Arctic region by one third.

China’s State Council announced a detailed timeline for upgrading nationwide motor fuel quality to the “China V” standards, with maximum sulfur content of 10 ppm for both gasoline and diesel. The...

In 2012 ICCT carried out an analysis of “real-world” fuel consumption data in Germany for the years 2001–2010, based on data from the German website spritmonitor.de. This is an online database with... Follow-up on our analysis last year of fuel consumption data contributed by users of spritmonitor.de confirms the original findings—in fact, average discrepancy between user-reported values and the...

Last spring, my colleague Hui He blogged about then-new vehicle taxes in India. She argued that the increase in excise taxes on bigger passenger cars was a welcome step toward disincentivizing the... The Indian government's decision to phase out diesel subsidies is good as far as it goes, but it doesn't go as far as it could.

An important question when estimating the indirect land use change emissions from biodiesel feedstocks is whether vegetable oils replace each other in the market, so that increased demand for one...