Let’s Use Airships Instead of Airplanes

Travelling via airplane is safe for you as an individual, but collectively all of using planes is unsafe. At ground level the emissions from airplanes are bad and are even more damaging when released high in the atmosphere (where you know, planes fly). If we’re going to survive the climate crisis then we’ll need to all reduce our use of modern airplanes.

Let’s use airships instead. More commonly known as blimps, these large airborne vessels can transport cargo more efficiently than boats or planes, they are just lacking the airport infrastructure. Lockheed Martin has recently found a way to make them more efficient and is proposing airships as a new way for luxury travel.

A paper in the journal Energy Conservation and Management published in September posits that just one airship could move 21,000 tons of stuff using almost no energy at all if we used airships to harness the free winds of the jet stream, the narrow band of fast-moving air above the troposphere, where planes fly. These winds, which average 100 miles per hour and can be as speedy as 250 mph, could propel an airship from Denver to China in about seven days or from Los Angeles to Tokyo in four, says Julian David Hunt, of Austria’s International Institute of Applied Systems Analysis and the paper’s first author.

These lower-flying vehicles, known as hybrids, are likely what we’ll see in the nearer future. Aerospace company Lockheed Martin’s hybrid prototype sports three cartoonish bubbles up front to help with navigation and engines to assist with maneuverability. The company’s hybrid design uses 20% aerodynamic lift — a lightly fuel-powered boost for a bit of a “plane-like effect” — and helium for the remaining 80% buoyant lift, Boyd says. The end result uses significantly less fuel than a plane and can access many areas other vehicles can’t.

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Let’s do Better than Bike Lanes


In North America bike lanes are afterthoughts slapped on infrastructure meant for heavy metal objects that kill people and the planet. It doesn’t have to be this way. We can change the conversation from supporting large single occupant vehicles to supporting solutions to move large groups of people safely through our cities. In the 20th century car manufacturers spent lots of money to convince people that everyone needs a car and that “smart cities” would be built around the car and not people. Today we need to do the opposite and spend time and money convincing everyone that cities should be for people and not cars – and we can do it!

Cars and trucks get billions in federal, state, and local money. Governments can mindlessly belch out vast sums for highway widenings—see the $1.6 billion spent on a single-lane addition to the 405 freeway in Los Angeles, even though we’ve known for years that it would not make a dent in travel times. With all this money seemingly available for car infrastructure, some of which is absolutely useless or makes traffic worse, there’s only a pittance devoted to robust bike networks. Why?

Let’s dare to design something that can actually make a difference and imagine micromobility infrastructure that goes beyond bike lanes and that leapfrogs piecemeal local approaches. Let’s create a blueprint that can have real, lasting impact, to excite the masses, bring together many groups, companies, special interests, and demographics, create real mode shifts, and actually make a real difference in pollution, climate, and car deaths.

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London’s Ultra Low Emission Zone Cuts Toxic Air Pollution by a Third


London’s Ultra Low Emission Zone (ULEZ) can be considered a roaring success. The ULEZ was created by London mayor Sadiq Khan to combat the health crisis created from too many cars being in a small geographic area (and to improve the ability of people to get around the city). The plan called for a section of London to be only accessible to vehicles which meet the criteria of an ultra low emission vehicle, like electric cars. The policy has reduced the total amount of vehicles in that part of London while also reducing toxic pollutants in the air. If London can do it then surely other cities can too!

Since introducing the ULEZ new data reveals that:
• Roadside nitrogen dioxide (NO2) pollution has reduced by 36 per cent in the zone. This is measured from February 2017 to September 2019, to reflect when the Mayor publicly confirmed the Toxicity Charge (T-Charge) – the predecessor to the ULEZ – and people started to prepare for the schemes. Analysis in today’s City Hall report estimates that the reduction in NO2 pollution solely attributable to the ULEZ is 29 per cent*.
• None of the air quality monitoring sites located on ULEZ boundary roads have measured an increase in NO2 pollution levels since the scheme was introduced in April 2019.
• From March to September 2019 there was a large reduction in the number of older, more polluting, non-compliant vehicles detected in the zone: some 13,500 fewer on an average day, a reduction of 38 per cent.

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It’s Time for Less Speed and More Efficency

subway transit

A regularly seen warning on roads is that “speed kills” and cities have been slowing traffic around the world to protect pedestrians. However, have you thought about how speed as a concept kills? Over at the tech-worshipping magazine, Wired, they’re running an article that explores the idea that reaching for better speeds is in itself a problem. The need for speed is killing the planet and instead, they argue, we need to strive for efficiency.

Here’s the thing: These ideas for accelerating the future fail to address a far more pressing problem than our stalled speedometers. In the US, transportation accounts for 27 percent of the carbon we release into the air, more than any other sector of the economy. Four-fifths of that comes from cars and trucks. The internal combustion engine is rocketing us deeper into a climate crisis that demands an immediate—and big—reduction in those emissions. Hyperloops might run on clean electricity, but it would take decades for them to become extensive enough to replace a significant number of cars. Supersonic flight requires engines that use much more fuel, and more carbon, than slower planes. These rosy renderings of effortless whooshing hither and yon distract us from what the problem demands: a way forward that prioritizes not thoughtless speed but calibrated efficiency.

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We All Benefit When We Build Safe Streets

Good Street from Streetmix

The climate crisis requires solutions at all levels and that includes the streets. Safe streets for pedestrians and cyclists ensures that more people will use sustainable transit (and not drive polluting cars). New York City has earned a reputation for redesigning their streetscape to be for people instead of cars, which has been praised here on this site and elsewhere. This reputation was fostered under the previous mayor and now the new mayor, Bill De Blasio, isn’t living up to his predecessor’s urban design philosophy. We can’t ignore that the debate has moved from just needing bike lanes to needing safe bike lanes – New York City is still ahead of other cities. Let’s hope all cities can have more elevated debates about safe transit infrastructure.

Let’s stand back and look at what’s going on. The problem is the absence of an infrastructure that gives bikers, pedestrians, and even delivery trucks what they need so they don’t go to war against each other for the rat-infested crumbs of asphalt the city has them fighting over. Cyclists need protected lanes and prioritized lights all over the city. Give that to them and they won’t swarm the sidewalks, they won’t drive the wrong way all the time, and they won’t go through intersections when they shouldn’t. Give pedestrians the wide and safe sidewalks they need, the benches their weary legs desire, the trees that make shade in the summer, and calm streets in which the majority of space is devoted to the majority of people who are not in private cars. This has been proven to work — it’s not a risky leap, it’s been ridiculously successful in cities across the world, particularly in Europe.

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Thanks to Aidan!

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