Flights in private jets are 10 times more polluting than commercial flights, according to T&E. Itâs why, this summer, public anger grew over their use by celebrities and rich individuals, following the attention drawn to them by the Twitter account @CelebJets that tracks their use. Kylian Mbappe, Taylor Swift, Kylie Jenner, Elon Musk and many more: sports stars, pop stars, rich entrepreneurs, they were all named along with the very short … [Read more...]
EVs vs Biofuels: new study looks at ethanolâs impact on agricultural land use, food prices, emissions
For transport, biofuels have lower emissions than gasoline/petrol, but EVs will have the lowest emissions of all. Hence the opposition to those biofuels, along with objections to the valuable cropland used to make the ethanol. But the overall advantage depends on the speed of transition to EVs charged with clean electricity. Now, a calculation has been made of the amount of agricultural land preserved for global food production - or kept as … [Read more...]
SAFFiRE: cheap, Sustainable Aviation Fuel from agricultural waste
SAFFiRE (Sustainable Aviation Fuel From [i] Renewable Ethanol) is a 10-ton-per-day pilot plant project. The goal is 7bn gallons of sustainable, low-carbon aviation fuel by 2040. Ryan Horns at NREL explains that the sustainable fuel is made from corn stover, an agricultural waste product, chemically broken down into sugars that can then be converted to fuels. The SAFFiRE process can take advantage of the existing infrastructure of over 200 ethanol … [Read more...]
100% green shipping would add less than 10 cents to the cost of Nike trainers from China
Upcoming EU policies intended to cut shipping emissions would add just a few cents to the cost of goods all the way from China, says an analysis by T&E. Extending carbon pricing to shipping and mandating small amounts of green e-fuel use by 2030 will mean a pair of trainers would cost just âŹ0.003 more, a television âŹ0.03 and a refrigerator up to âŹ0.27 more. Itâs because final costs are not very sensitive to fuel costs. The more startling … [Read more...]
Do e-bike subsidies lift sales, change habits and cut emissions?
What happened when Sweden introduced a 25% rebate on the cost of an e-bike for 12 months over 2017-18? Lucas Davis at the Haas School of Business reviews a study that digs into the consequences. Sales increased by 70%. E-bike prices remained steady, so the sellers didnât simply raise prices to eat up the rebate. The study estimates that although a third of those sales would have âhappened anywayâ (i.e. no additionality) the remaining two-thirds … [Read more...]
If most truck journeys are less than 300 miles the E-Truck revolution can happen now
What proportion of trucks today could go electric? Thatâs the question Emily Porter at RMI has asked for California and New York. The answer is 65% of medium-duty trucks and 49% of heavy-duty trucks. Those are very encouragingly high numbers. RMIâs definition of âelectrifiableâ is if they travel fewer than 300 miles between trips to their home bases. The study gathered real data on how freight trucks are driven today. Clearly, a large number of … [Read more...]
New research ranks the 12 best ways to cut car use in cities
Behaviour change is as an important part of our transition journey as the clean energy revolution. Kimberly Nicholas at Lund University summarises research that has gathered together nearly 800 peer-reviewed reports and case studies from across Europe that analyse ways of reducing car use. One main challenge is to quantify the benefits so policy-makers and citizens can make evidence-based decisions on how to re-imagine city mobility. Nicholas … [Read more...]
Aviation policy alert: non-CO2 emissions have up to four times the climate impact
Thereâs little point designing CO2 policies without knowing what other factors are heating up the atmosphere. So it is with aviation. The non-CO2 emissions (aromatics, NOx, SO2, H2O, particulate matter, etc.) from jet engines have up to four times the effect of CO2. You can see it in the contrail cirrus streaks trailing behind aircraft. Carlos LĂłpez de la Osa at Transport & Environment summarises their recent summit that brought together … [Read more...]
Piloting green shipping corridors: Australia-Japan and Asia-Europe
The shipping industry is diverse, disaggregated and part of the logistical chain of 80% of global trade. So reducing its emissions (3% of the global total) will be complex. One way to cut through this complexity is to create a limited number of green shipping corridors between major port hubs, to pilot solutions. This can shrink the challenge of coordination between fuel infrastructure, vessels, firms and national policies down to a manageable … [Read more...]
E-fuels for cars are expensive, and pollute the air as much as petrol
MEPs and governments are currently deciding on an EC proposal for all new cars sold from 2035 to be 100% zero-emissions. Here, T&E present test results that show e-fuels should not be allowed to replace petrol. T&E are concerned that e-fuels are being promoted as a way to prolong the life of ICE vehicles. But their tests show that e-fuels produce just as much NOx, three times more carbon monoxide, and twice as much ammonia. Though e-fuels … [Read more...]
The 10 big problems with simply replacing fossil cars with electric
The planned rapid transition to electric vehicles has major challenges. Schalk Cloete compiles them into a list of ten, including: preserving our car-centric cities preserves its inefficiencies and societal costs; it works against much of the personal âbehaviour changeâ we need; though BEVs (battery electric vehicles) are better in cities, when infrastructure costs are included they are less efficient than hybrids and modern ICEs for many driving … [Read more...]
Vehicle charge zones: too high, and driver detours can increase emissions
Vehicle congestion charge zones are a way of taxing drivers for the emissions they create. They have great potential to steer polluters towards shorter and/or fewer journeys, and towards cleaner fuels. But it's full potential that has gone mostly untapped. Most âcordon zonesâ found in big cities like London, Stockholm, Milan and Singapore keep the rules very simple. Journey length is rarely, if ever, taken into account. Importantly, no one is … [Read more...]
Concern over auto job losses as Europe transitions to EVs
The state premier of Lower Saxony, home of Volkswagen, says he would not tolerate a large-scale reduction in staff at Germanyâs largest carmaker. There is talk of axing 30,000 VW jobs nationwide, though messages have been mixed. Benjamin Wehrmann and Sören Amelang at Clean Energy Wire look at the latest news, then summarise the implications of the EV transition for the auto industry across Europe. Highlights include the observation that a Tesla … [Read more...]
Green hydrogen-based fuels pivotal in decarbonising Shipping by 2050
The international shipping sectorâs emission levels are comparable to Germanyâs. Like aviation and heavy transport, reaching net-zero will need renewable fuels â direct electrification wonât be sufficient. Existing fossil fuel engines allow for biofuel blends of up to 20% without any modifications, and 100% methanol engines are a proven technology. Making sufficient quantities of clean fuels - without consuming food crops â is the challenge. … [Read more...]
Clean transport in Europe: key trends to watch out for
T&Eâs quarterly trends series gives a snapshot of the key developments that will define the future of clean transport in Europe. And what Europe does â given it wants to lead this field â should influence what happens worldwide. T&Eâs Thomas Earl brings attention to four issues. First, proven progress in this major sector makes it a contender for a significant role in Europeâs new industrial strategy. It ranges from battery and … [Read more...]
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