Around one-third of all biodiesel produced in the U.S. is made from waste feedstocks like used cooking oil, animal fats, and inedible corn oil. But few waste feedstocks are really wastes; none of...“Waste” biodiesel from corn oil probably drives up corn production and could have resulted in 500 thousand extra tonnes of CO2e emissions in 2017.
Published 2019.01.10: Blog Post
Earlier this year the Real Urban Emissions initiative (TRUE, funded by the FIA Foundation and C40 Cities) completed a project using remote-sensing technology to measure nitrogen oxide (NOx) emissions...We recently finished collecting, cleaning up, and crunching the numbers from a real-world emissions measurement campaign in London using remote sensing. And we've updated the TRUE rating that...
Published 2018.12.17: Blog Post
In 2009, the International Air Transport Association (IATA), the global trade association for cargo and passenger air carriers, set three goals for the reduction of carbon dioxide (CO2) emissions...Airlines are expected to achieve their goal of an average improvement in fuel efficiency of 1.5% per year.
Published 2018.12.17: Blog Post
Climate news these days is downright depressing. Global CO2 emissions hit their highest level ever in 2017 and show no signs of peaking. Global average warming is now at 1 degree C and likely to...Soot-free transport will deliver black carbon reductions, which can help achieve the near-term cooling needed to meet a 1.5˚ C target. Climate negotiators in Poland this week ought to bring it into...
Published 2018.12.12: Blog Post
Earlier this year, India approved a sweeping update to its National Policy on Biofuels, which lays out an ambitious plan to substantially increase domestic biofuel production. Unlike the Renewable...India’s biofuel policy update discourages food-based fuels, focusing instead on increasing production of second-generation biofuels made from wastes and inedible energy crops.
Published 2018.12.11: Blog Post
In our recent transatlantic airline fuel efficiency study update, we compared the fuel efficiency of 20 airlines with routes between the United States and Europe. Most of the transatlantic routes in...Finding the lowest carbon flight for a specific trip is more complicated than simply choosing the most fuel-efficient carrier.
Published 2018.12.10: Blog Post
The European Commission’s recast Renewable Energy Directive to 2030 (RED II) includes a provision to phase out the contribution of biofuels produced from feedstocks that are high-ILUC risk by 2030....The EC will will soon decide on criteria for classifying high- and low-risk indirect land use change (ILUC) biofuels under the RED II. If the Commission gets it right, this provision could make a...
Published 2018.12.03: Blog Post
We are entering the final stretch of one of the most important races of the EU to decarbonize transport. If everything goes according to plan, in about four months the EU should become the sixth...If super credits are here to stay, we can at least try to make them better by getting buses out of the scheme and accounting for freight activity.
Published 2018.12.03: Blog Post
The International Civil Aviation Organization (ICAO) appears to believe that the international aviation industry can meet its steep carbon targets under the Paris Agreement almost entirely through...It's unlikely that the aviation industry can meet its steep carbon targets almost entirely through the use of low-carbon fuels.
Published 2018.11.15: Blog Post
A common refrain is that advanced biofuels are just a few years away from commercialization—a claim that has been made for much longer than just the past few years. The U.S. EPA’s Renewable Fuel...Despite claims that advanced biofuels are just a few years away from commercialization, existing projects struggle to reach their nominal capacity.
Published 2018.11.13: Blog Post
All stages of advanced biofuel production face challenges, and an essential step to reliably scaling them across the transportation sector and beyond is ensuring the availability of feedstocks....An essential step to reliably scaling advanced biofuel across the transportation sector and beyond is ensuring the availability of feedstocks.
Published 2018.11.08: Blog Post
There’s no room for natural gas in a fully decarbonized future. But the European gas industry argues we should continue using natural gas infrastructure and vehicles because the European Union’s (EU...The European gas industry argues we should continue using natural gas infrastructure and vehicles because the European Union’s gas supply can be transformed to a fully renewable resource by 2050. Is...
Published 2018.11.01: Blog Post
We often hear about how biofuels and other alternative fuels will be needed to decarbonize the aviation sector in the long-run. How easy or difficult will this be to achieve? There are already some...Although touted by some as necessary to decarbonize the aviation sector, logistics are still an issue for alternative jet fuels.
Published 2018.10.31: Blog Post
IMO: More efficient container and general cargo ships are on the horizon, but don’t pick on the small guys
On October 26, 2018, the International Maritime Organization (IMO) tentatively agreed to make some new ships more efficient in what will be an important step towards implementing the organization’s...IMO has tentatively agreed to make some new ships more efficient, but that’s on hold to address equity concerns. What does this mean for emissions and for further efforts to reduce climate pollution...
Published 2018.10.29: Blog Post
In the aviation industry’s vision of the future, neatly laid out by the International Civil Aviation Organization, airlines can meet all of their obligations under the Paris Agreement through simple...Proponents of alternative jet fuels often ignore the reality that many other sectors have laid claims to limited bio-resources as part of their own decarbonization strategies
Published 2018.10.24: Blog Post
Production of cellulosic biofuel is expected to fall nearly 7 billion gallons short of meeting the statutory Renewable Fuel Standard (RFS) volume for this type of advanced biofuel in 2018, which has...Government grant and loan guarantees, not the Renewable Fuel Standard, have been essential in spurring progress in the cellulosic biofuel industry.
Published 2018.10.18: Blog Post
Bioenergy has become a popular decarbonization strategy—so popular that policy makers and researchers in several sectors are claiming biofuels, bio-electricity, and bio-heat can deliver a large...Bioenergy has become a popular decarbonization strategy to reduce greenhouse gas (GHG) emissions. However, even if bioenergy production is maximized, competition across industry sectors is high.
Published 2018.10.15: Blog Post
India recently announced its National Policy on Biofuels, which includes ambitious targets for ethanol and biodiesel produced primarily from non-food and non-feed sources. The policy aspires to...A new policy in India aims promote cellulosic biofuel production from sustainable feedstocks, something no other country has managed to do. Can the country succeed?
Published 2018.10.11: Blog Post
Death, taxes, and supersonic aircraft? Considering what’s certain, and what isn’t, under the FAA Reauthorization Act
There’s an old saw, most famously attributed to Benjamin Franklin, that nothing in life is certain but death and taxes. More recently, some have argued that the return of commercial supersonic flight...Despite a nod to supersonic aircraft in the new FAA reauthorization, CO2 and noise standards are still uncertain.
Published 2018.10.10: Blog Post
The International Civil Aviation Organization (ICAO) relies heavily on the Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA) to reduce greenhouse gas (GHG) emissions from...Despite ICAO's reliance on alternative jet fuels to decarbonize the avaiation industry, production does not appear to be keeping up.
Published 2018.10.09: Blog Post