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ICAO’s CORSIA scheme provides a weak nudge for in-sector carbon reductions

The International Civil Aviation Organization (ICAO) has not yet figured out how to decarbonize jet fuels. Under the Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA),...ICAO's Carbon Offsetting and Reduction Scheme for International Aviation will probably not provide a meaningful framework to transition to alternative jet fuels.
Published 2018.08.06: Blog Post

Final recast Renewable Energy Directive for 2021-2030 in the European Union

As part of its ‘Clean Energy for all Europeans’ package, the European Commission in 2016 proposed an update of the Renewable Energy Directive for the period 2021 – 2030 (RED II). A final compromise...
Published 2018.07.19: Publication

Environmental performance of emerging supersonic transport aircraft

This paper provides a preliminary assessment of the environmental performance of new commercial supersonic transport aircraft (SST). Three U.S.-based startup companies are working to develop new SSTs...
Published 2018.07.17: Publication

Evaluation of real-world fuel consumption of light-duty vehicles in China

There is growing evidence globally and in China of the gap between laboratory test findings and real-world carbon dioxide (CO2) emissions and fuel consumption. Building on previous work, this project...
Published 2018.06.21: Publication

Palm oil is the elephant in the greenhouse

Palm oil isn’t as bad for climate as you think. It’s worse. The oil palm industry is expanding quickly into tropical rainforest, and increasingly into peat swamp forest. The total land area planted...Palm oil isn’t as bad for climate as you think. It’s worse.
Published 2018.06.06: Blog Post

Yes, your mother loves the flowers, but maybe not the cost of flying them in

Twice a year, at Valentine’s Day and Mother’s Day, newspapers in the U.S. often print articles informing the public where their flowers come from. While the main purpose of these stories may be to...Around Mother’s Day, media outlets often publish articles about where the flowers we buy often originate and the extraordinary efforts taken to transport them to the U.S. How much jet fuel is burned...
Published 2018.05.09: Blog Post

ICAO, why can’t you be a bit more like your sister?

Arguably, the biggest climate news so far in 2018 is the International Maritime Organization, or IMO, finally adopting a global climate framework for international shipping. In doing so, it joined...IMO and ICAO, the sister UN agencies governing international shipping and aviation, have both struck global deals on greenhouse gas emissions. But why, oh why ICAO, can’t you be more like your sister...
Published 2018.05.02: Blog Post

The International Maritime Organization's initial greenhouse gas strategy

At the 72nd meeting of its Marine Environment Protection Committee, the International Maritime Organization (IMO) adopted a resolution codifying an initial greenhouse gas (GHG) strategy for...
Published 2018.04.23: Publication

Is it finally time to be bullish on IMO’s climate policy?

An economics blogger I follow once wrote that it’s impossible to be a long-run market bull if you’re always a short-term market bear. The adage, which points out that it’s philosophically...Progress in establishing a cap on GHG emissions from shipping has been slow going. But, last week, the IMO finally passed a resolution on the first global climate framework for international shipping...
Published 2018.04.19: 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

Effects of battery manufacturing on electric vehicle life-cycle greenhouse gas emissions

This briefing reviews recent research regarding greenhouse gas emissions from the manufacturing of lithium-ion batteries for electric vehicles. We analyze this research in the overall context of life...
Published 2018.02.09: Publication

Compliance pathways in the U.S. Phase 2 heavy-duty vehicle efficiency regulation

  The U.S. Environmental Protection Agency and the U.S. Department of Transportation's National Highway Traffic Safety Administration recently published the final Phase 2 rules targeting fuel...
Published 2018.02.05: Publication

Profits and carbon emissions surge for U.S. domestic airlines

Low fuel prices and high travel demand undercut overall fuel-efficiency gains in aircraft operations in 2015 and 2016, study finds Annual fuel-efficiency ranking of domestic carriers shows Alaska...
Published 2017.12.14: News

European vehicle market statistics, 2017/2018

The annual European Vehicle Market Statistics Pocketbook offers a statistical portrait of passenger car, light commercial vehicle, and heavy-duty vehicle fleets in the European Union since 2001, with...
Published 2017.11.28: Publication

CO2-based synthetic fuel: Assessment of potential European capacity and environmental performance

CO2-based synthetic fuels are of increasing interest as a potential strategy to reduce petroleum consumption as well as greenhouse gas (GHG) emissions from the transportation sector. The most well-...
Published 2017.11.14: Publication

Time to party like it's ... 2008?

We recently released a comprehensive GHG emission inventory for global shipping, 2013 to 2015. It builds on previous research commissioned by the International Maritime Organization (IMO) that uses...The International Chamber of Shipping says that because our recent study shows that shipping emissions remain below their 2008 peak, not to worry. That's an overly rosy view of the data.
Published 2017.10.20: Blog Post

Boeing, GE, and ICCT makes three!

It’s been a dizzying couple of weeks for those (admittedly few) of us who work on aircraft emissions. Two weeks ago last Friday, the Center for Biological Diversity announced that it had sent the U.S...Next year, EPA has the chance to propose an ambitious GHG standard for aircraft to promote low carbon aviation. It alluded to the possibility of going further than the UN’s weak recommendations in...
Published 2017.10.02: Blog Post

Indirect greenhouse gas emissions of molasses ethanol in the European Union

The European Commission has proposed adding molasses to a list of advanced biofuel feedstocks eligible for support in the 2021-2030 timeframe under the recast Renewable Energy Directive. Final stage...
Published 2017.09.27: Publication

Bus manufacturers commit to bring cleaner 'soot-free' buses to 20 megacities

Paris, France (27 September 2017) — Four of the world’s largest bus and engine manufacturers have committed today to make it easier for major cities to purchase buses equipped with low emissions...
Published 2017.09.27: News

Low-carbon technology pathways for soot-free urban bus fleets in 20 megacities

Urban transit bus fleets are a significant source of air pollutant emissions, including black carbon, a harmful ultrafine particle and potent short-lived climate pollutant. Transit bus fleets are...
Published 2017.08.31: Publication

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