Living without engines and car free day in the Netherlands

A photo from today's "commute", a round-trip
rider which brings me back home to work.

The last time that I travelled in any kind of motorized vehicle was in February 2019 when I took a lift with a friend to help him with an event. The last time I travelled with a motorized vehicle for my own benefit was in August 2018, driving the car that we owned but never much used to be recycled.

It's "car free day" today, but just as everywhere else across the world this is ignored by the masses who continue to drive their polluting vehicles to and fro. Every trip made by car, in every car including those which claim to have zero emissions, contributes substantially to climate change, the effects of which we increasingly feel as a result of the "natural" disasters which result from our changed weather.

There has been much on the news about the fires in California and Siberia, but here in the Netherlands we also see the result of this with new records being set on a regular basis. We began this summer with a near drought and just last week we had the warmest September day ever in this country, but just as with previous warnings, this resulted in no real change. People are back to their usual high emitting lifestyles. Cars are very much a part of this, with their numbers, their usage and their size all growing year on year.

But we can't blame cars alone for the problems that we're facing. The growth in flying is such that even now in the middle of a second wave of the pandemic there are just as many flights as there were four years ago without a pandemic. Almost all the growth comes from the richest people and the richest people continue to deny that they are the richest people.

That the short blip of reduced emissions due to corona was just a short blip shouldn't really surprise anyone. It certainly didn't surprise me as I predicted it back in April as even then people were talking about a "return to normal". The problems which face us are enormous but it seems that people don't know how to or do not wish to react in ways which will address them, and that applies even to the case  of a very immediate threat to our health from a deadly virus.

We are the rich and polluting minority and it is us who need to change our lives in order to leave a liveable planet for our descendants. Don't we want to do that ? Is it not a worthwhile thing to do ? If we can't convince people even to take the tiny step of taking part in a single car free day once a year, what hope do we have in effecting real change in behaviour and thinking ? However I'll try to set an example by living with the smallest footprint that I can manage, avoiding motorized transport so much as I possibly can.

No subsidy for the car-free
An interesting thing about the Netherlands is that drivers of cars receive subsidies from taxation paid by all, which of course means that while I try not to contribute to the pollution and other problems caused by cars, our government makes sure that I do so anyway. Talking of which:

Local newspaper on the 22nd of September
Our local newspaper has not covered car-free day at all. It is just not a thing here in the Netherlands. However car companies have huge budgets for promotion and there is always a budget to try to associate their dangerous and environmentally destructive product with something other than its danger and environmental impact. So instead of car-free day coverage we have, on the 22nd of September, a full page dedicated to a different event spread over three days in October when car drivers will fill the roads, waste a vast amount of energy and produce a lot of emissions by driving a million kilometres in "green" cars.

The quotation marks are mine. The article is promoting a deliberately created traffic jam of polluting vehicles. There is nothing truly sustainable about these vehicles. Unfortunately, governments listen to car company propaganda and therefore I and other people who do not drive are made to contribute to a government subsidy given to people who do drive. What's more, the subsidy is not having a useful effect and emissions from cars continue to grow in the Netherlands because people who drive overwhelmingly choose larger more polluting vehicles.

The text includes some words about cycling, walking or just staying home, but the emphasis is obvious. This is an event about cars and their intention is to do something incredibly wasteful, to drive cars a million kilometres for no reason whatsoever, while somehow managing to promote this event as "green".

Update: Car companies continue marketing their destructive product
The above can only sensibly be seen as a marketing exercise. There is nothing "green" about any kind of car. And is this marketing working ? A few days after this blog post was written there came an answer: it most certainly is working. Car usage in the Netherlands continues to grow year on year. The biggest increase is again in use of petrol / gasoline (benzine in Dutch) powered cars. Car companies spend much time pushing the absurd idea of green motoring which is a myth in itself but this myth is presented in such a way that it gets absurd amounts of attention such as that from our local newspaper above and from politicians, however their main product remains what it always was: Cars remain the same old polluting, planet destroying, dangerous product that they ever were. We can only ever solve the problems due to cars by having far fewer of them driven less. But car companies are still selling the nightmare scenario of more cars.

Real green transport
The million kilometres travelled in three days target of the motor lobby is actually not all that much anyway. A target for cycling in the Netherlands would need to be much higher. Most cycle journeys are more than a kilometre long and for most of any given working day Dutch people make more than a million journeys per hour by bike so a million kilometres would easily be reached by the end of the first hour on the first day of this exercise if encouraging cycling was really their aim. 

Business as usual by driving a "Green car" vs. actually using a genuinely clean and green mode of transport

In the late 80s I worked as a contract software engineer and lived as a sort of a self-propelled technological vagrant. I had never had an interest in cars and wouldn't learn to drive for several more years so all my travel was by public transport, by bicycle or by foot. Many people thought this an unusual choice, but I managed to make my way with an ancient laptop computer and portable stereo to wherever I had work to do.

This is very close to where I lived in South London. It's no surprise at all to me that this scene is much the same today as it was then - a place dominated by cars. There are twice as many cars on Britain's roads now compared with then, all adding to the many problems that cars cause. Electric cars won't solve this problem. Self-driving cars may well make it worse (they'll drive even with no-one in them to collect people or to avoid paying for parking)

For a few months I worked off and on at a location in South London where I found accommodation in a local family's spare room. It was just as well that I didn't drive as there would have been nowhere to park a car, Mum, Dad and both their sons had cars so the driveway and the road outside were already full. They were sociable people and there were often conversations over breakfast, often concerning annoyance with traffic jams and the cost of fuel. One morning my landlady told me that it was going to be expensive for her but because she was so concerned about the environment she was buying a new "green" car (she used the word "green", which then just as now I found an odd choice to describe any car).

2017: Car companies have never shied away from claiming
that their product is "green", but actually cars are anything
but a "green" product. Similarly, this sign claims that a
product which kills over a million people every year is "safe".

It seemed to me that the problem with that area was that is was dominated by cars. I couldn't see how changing from one model of car to another was going to achieve any sort of transformation (I think I've been proven to be right as it's still dominated by cars, just like the rest of London). I pointed out that building a new car costs in lot of energy and resources and that therefore keeping an older model going for a few more years would quite possibly have a lower environmental impact than changing prematurely to a new one. I also pointed out that the new car would burn fossil fuels at much the same rate as her old car so those gains would be marginal at best. But it was too late for any of this as the marketing people's work had been done and a mind had been made up: My temporary landlady was convinced that new technology made the new car so much better than the old so she was buying one. What was this new technology ? It was merely that the new vehicle could (optionally) run on unleaded petrol.

The environmental advice on offer to drivers is confusing.
These energy labels for new cars show a better rating for
a car with higher emissions. Why ? Because they are based
on the weight/class of the car. The lighter car with the C
rating produces lower emissions per km. No advice is given
to not buy or use a car.

I was a guest in someone else's home and I left it at that, but this thought always stayed with me: Marketing works. A very pleasant woman had been convinced to part with a lot of money to buy a new "green" car because she thought it would allow driving with a clean conscience, in addition to it being a nice thing to show off to her friends. Of course she was far from the only one convinced: Many millions of people have since followed the same path.

Now it's a good thing that lead was removed from automotive fuels. The entire planet was being contaminated with lead from the exhausts of cars and this was especially concentrated in cities and alongside busy roads where many people lived. The result of lead pollution included lowered intelligence and higher crime rates. But could a car modified only so that it could run on lead free fuel be said to be "green" ? Surely not. Hardening valve seats to allow use of unleaded fuel was a relatively inexpensive development which allowed for a new model year of car to be produced, distinct from the old, but it was really just the smallest improvement which the manufacturers could make when faced with possible legislation against them. The greater problems with cars had not been tackled - new cars burnt just as much fuel as the old and carbon emissions were therefore the same. The "green" marketing served its purpose in that it extracted money from customers' bank accounts and sold more cars, but it did nothing for the environment.

Let"s not forget about the other environmental effects of
driving. Tyre rubber makes up a large % of the "plastic soup"
in our oceans. The heavier the vehicle, the quicker the tyre
wears. Electric cars produce more rubber dust than petrol
cars and all cars produce far more dust than bicycles. There
is still no viable method to recycle tyres. See update below
about emissions from EVs

Since that time there have been several other claimed environmental improvements to cars, including catalytic converters (introduced later than lead-free in the UK), autogas, "clean diesel", hybrid, plug-on hybrid and fully electric cars. In each case, bold environmental claims have been made by car manufacturers. Each new type of car was marketed as offering the dream of continuing our lives as usual or even of increasing our use of cars while allowing drivers to have a clean conscience. It's public knowledge now that the clean diesel claims were deliberately based on a deception, but actually this has all been an illusion.

Electric cars are the current hype so that's something that's worth talking about now.

A 1950s mini and a modern mini have similar CO2 emissions.
So does an electric car. This slide comes from a presentation
which I gave in Assen in January on the subject of genuinely
clean and green transport.

In the Netherlands, 25% of electricity is generated by burning coal and 60% by burning gas. i.e. in total the electricity is generated 85% from the burning of fossil fuels. That is why the CO2 output as a result of driving an electric car is almost identical to that from driving a fossil fuel powered car.

I'm doubtful that any real progress has been made in reducing total CO2 emissions from cars since I had that conversation nearly 30 years ago because while cars haven't become significantly more efficient, their use has most certainly increased since then. Extend the time-line a little and we can be absolutely sure that modern cars produce more CO2 emissions than were contained in the obviously dirty exhausts of the 1950s because today's "green" cars are far higher in number and this swamps the relatively small efficiency improvements made.

The red line shows car usage growth since the 1950s in the
Netherlands. Today's slightly more efficient cars are far
more taxing for the environment than the dirtier cars of
old because they are being driven ten times as much. The
growth continues, reaching an all-time high in 2016.
Deaths per passenger km (in blue) have improved but
while that's good news, it's a topic for another day.

I think at this point it's worth bearing in mind that by the late 1980s in western nations, car usage had already been through its steepest growth period. In countries where the strongest growth is happening now or where it is yet to come, all the growth is just growth and all the emissions are in addition to what was there before. There is no possible argument that these new emissions can possibly be countered by improvements in efficiency over what there was before.

More cars are leading to more pollution. It doesn't much matter what the fuel source is, the result is the same. The only way to produce less pollution from motor vehicles is to have far fewer motor vehicles and to use them less.

Update 2018: A study from the University of Edinburgh / INNAS has suggested that particulate emissions are in fact no lower from electric cars than from internal combustion engine cars. To summarize: 90% of PM10 and 85% of PM2.5 emissions do not come from the exhaust pipes of cars but from tyre and brake wear. The heavier weight of electric vehicles results in their emissions from these sources being higher, cancelling out the relatively unimportant issue of not having an exhaust pipe. The report suggests that lighter vehicle weights should be pursued in order to improve emissions.

Government reaction to a growing problem

1970s magazine impression of a futuristic efficient electric
car, light weight and low performance. Unfortunately, the trend
has been towards higher weight and better performance which
has led to higher emissions. Subsidies are now given to
encourage people to buy relatively inefficient vehicles instead
of encouraging people not to drive cars when we know
that most car journeys are over cycle-able distances.

Governments around the world are now falling over themselves to offer incentives to those who buy new electric cars. Many millions of $, €, ¥ and 圆 are now being given away to encourage people to drive.

For example, the Dutch government has offered €1000 to people who scrap their old cars, but only if they use the money to buy a new car. This is a subsidy which encourages people to continue to drive. Anyone who wishes to scrap their old car and not drive at all cannot receive the subsidy. In addition, there are other incentives worth thousands more for people who buy an electric car. All these subsidies and incentives can only be used by those who choose to continue to pollute by continuing to drive. What's more, the more you drive, the bigger the saving that can be made because there is also a tax free 19 cent per km payment for commuters who drive. The Netherlands actually subsidizes driving, so it's hardly surprising that Dutch car ownership and use continue to rise.

Most journeys made by motor vehicle are short enough that they could instead be made by human power. In most cases a normal bicycle or by using an efficient bicycle such as a velomobile to cover slightly longer distances and enable comfortable cycling in all weathers. There are no subsidies to help to enable people to buy velomobiles. Modern, efficient, velomobiles are almost all produced by Dutch companies, but these companies do not receive the support from government which is offered to foreign companies producing electric cars.

The Netherlands continues to achieve more for cycling than any other country but even here there isn't enough attention being placed on encouraging people not to use motorized transport. Roads for cars receive at least ten times the funding available for cycling facilities.

Only 25% of Dutch electricity is now generated by burning
coal vs. 100% 50 years ago. Unfortunately the growth in
consumption means that twice as much coal is burnt to
generate electricity now in comparison with then.

But can't we use "green" electricity ?
50 years ago, almost all electricity generated around the world was the result of burning coal. This was the case in the Netherlands as well. Now just a quarter of all electricity in the Netherlands comes from coal, which might look like progress.

Unfortunately, the consumption of electricity has grown so much that to generate a quarter of our electricity today requires burning twice as much coal as was burnt 50 years ago. In addition, 60% of electricity results on burning gas, which produces about half the CO2 emissions of coal for the same useful electricity output but because more than twice as much generation comes from burning gas as from coal, the emissions of the gas power stations are even greater than the emissions of the coal stations.

It's not just the Netherlands that is reliant on fossil fuels for
electricity. This graph shows the growth in generation world
wide. The brown part is the contribution of fossil fuels.
It's completely unreasonable to expect that "green" electric
cars which double the total demand for electricity will be able
to run solely on renewables when faced with this data.

The contribution from renewable sources is still small at around 10% of the total, and it's still intermittent. We have an array of solar panels on our roof which generates more electricity than we use in our home and our business combined each year. Unfortunately, on overcast rainy September mornings like this morning, our "3600 W" system only produces about 1/10th of the electricity required to boil a kettle for a cup of tea. While we generate more electricity each year than we use, we don't only consume the electricity that we generate. Output in winter is far less than our use during that period and of course we could never run our lights at night time from our solar power. The balance of the energy used comes from other sources, which in the Netherlands mostly means gas, coal and nuclear despite our having signed up to a "green" tariff.

If everyone were to switch to driving an electric car then double the amount of electricity would be required. Not only would this require very many more generators but it would also create an expectation that vast amounts electricity ought to be available immediately to every motorist who arrives home at the end of a working day because they expect to be able to drive their car again later that evening or next morning. Unfortunately, the huge current consumption of fast charging (30 A for each Nisssan Leaf fast charger) of millions of electric cars plugged in at the end of the working day is simply not compatible with the way in which electricity is generated, at a consistent level all day through for traditional generators and when the sun shines or wind blows for renewables, and there are absolutely no viable storage technologies which could smooth this out (no, not with a battery and not with pumped storage either).

Forget about batteries
Let's re-iterate that. We can't rely on batteries because the resources don't exist on our planet to build them. Nor can we rely on such things as pumped storage because they simply don't scale. British people often like to point to the Dinorwig pumped storage facility in Wales. It's a marvelous machine and the roughly 75% efficiency is actually quite good, but its capacity is just 10 MWh which is a small fraction of the 830 MWh which the UK consumes each day. To provide enough storage to cater for seven days of normal electricity usage to allow for variations in wind strength you'll need to build another 500 of those plants. Are there 500 suitable places in the UK ? I doubt it. Add electric cars and you can double that. That's to give just a week's worth of storage. If you want to rely on solar power you actually need 6 months of storage...

The only solution is to use less electricity, especially overnight and during winter when there is less solar power and also at any time when the wind isn't blowing hard, when what we should be looking to do is to reduce electricity usage. That means not expecting to be able to charge vast numbers of electric cars.

Buses, trains and cars have quite similar energy
consumption per passenger kilometre. There's not
much to gain by convincing people to travel by bus
or train instead of driving a car. Bicycles are
a completely different story.

What about trains or buses ?
Unfortunately, public transport such as trains and buses use a very similar amount of energy per passenger kilometre to a car. There's no substantial gain from switching from one mode to another. To reduce energy consumption and the resulting emissions caused by transport we have to fewer journeys by motorized means over shorter distances.

The Dutch railway company NS boasts of using entirely wind energy to power their trains, but this is an illusion. All that's happening is that they have signed up for a wind energy tariff. Anyone can do that. I'm sure many of my readers have already done so. We did this many years ago and when I looked into it I found out where my "green" electricity really came from.

Having a green tariff doesn't mean that your electricity genuinely comes from that source because there would then be no guarantee of supply. Dutch trains don't grind to a halt when the wind stops blowing, they simply continue to run on the same mix of electricity sources as every other electrical device in the Netherlands. i.e. 25% coal and 60% gas.

Growth in air-transport

Aircraft and ships
Not only do we now use cars about 10 times more than we used to in the 1950s, but we fly about 30 times as much as we did at that time. Despite great increases in the efficiency of aircraft this has resulted in enormous growth in emissions.

Not only passenger transport, but the shipment of goods has also also grown enormously. The Berlin Airlift required an unprecedented effort by the Western Allies using military and civilian aircraft to move enough food, fuel and other supplies into Berlin to sustain the population over 15 months in 1948 - 1949 however routine civilian cargo flights now move the same weight of goods by air every four days.

The original Boeing 707 was sold in the 1950s on the basis that it consumed a tenth of the fuel per passenger km, and therefore would create about 1/10th of the CO2 emissions, compared with a contemporary ocean liner. Since that time, jet aircraft which were then a new technology have become three times more efficient while the efficiency of ships, which were already a developed technology, has not moved markedly. Anyone who travels by ship instead of by aircraft on the grounds that it's "green" has made a huge error.

The only way of reducing the emissions of your journeys is to travel less.

Ships powered by sails alone have genuinely low emissions but while there have been frequent stories over the past few decades (even so long ago as the 1920s) about new ships with sails, wings and kites, only a handful of ships have ever used these techniques to reduce their reliance on fossil fuels and there are (very nearly) no sailing ships in current use for cargo or passenger travel.

Offsetting
Carbon offsetting doesn't work. Removing coal, gas or oil from the ground and burning it is a one-way process. Paying someone in a far off country to plant a tree does not remove CO2 from the air and put it back underground, it merely moves some amount to temporary storage in a tree. If you live in a western developed nation it's quite likely that where you live now is a place which was once a forest, or at least covered in more vegetation than you see around you. Please do plant trees as that compensates to some extent for deforestation which has already happened and continues to happen, but recognize that doing so is only replacing the trees which have already been displaced. It does not compensate for using fossil fuels.

Similarly, you can't compensate for higher usage of fossil fuels by eating a vegan diet or by not having children. Yes, it's true that both of those things will reduce your carbon footprint relative to someone who eats meat or has children, but they cannot make it it negative as would be required to compensate for burning fossil fuels.

Airlines, movie companies and other businesses have partnerships with carbon offsetting companies because it's good marketing, greenwashing a company reputation rather than actually solving a problem. We can't buy away our effect on the planet, we can only reduce our effect by consuming less.

Reduce, Re-use, Re-cycle
The Three Rs of environmentalism are supposed to be "Reduce, Re-use and Re-cycle". They're always stated in that order because "Reduce" is most important but unfortunately it's also always been the least popular suggestion of the three. Buying ever more stuff and sending it away at the end of its (short) life so that someone else hopefully will be able to recycle that stuff is not the same as buying less stuff in the first place.

Where transport emissions are concerned it's really only "Reduce" which has any relevance. The only way we can reduce our emissions through travel is to reduce the number of kilometres per year that we travel by using motorized modes of transport. Unfortunately, the pattern of the last few decades has been one of extraordinary growth with people using cars more and flying much more so that they can take holidays at greater distances from home.

Who is a "cyclist" ? As "cyclists", are we helping or hindering ?
What proportion of the distance that each of us covers each year is by bicycle ? The average Dutch person walks or cycles about 10% of their journeys by distance. Similarly, I suspect that many enthusiastic people who read this blog and identify as "cyclists" actually cover rather more distance by a mixture of car, aeroplane, bus and train than they do by bicycle. If we do that, and our cycling is actually a minority mode for us, then perhaps we should identify instead as "motorists" as the majority of our transport is actually by motorised vehicle.

I'm not getting at you, dear reader, I'm asking you to think about it. Think about your own travel patterns and those of others. I'm thinking about it. I refused an invitation to attend a cycling conference in Australia a few years ago because of the travel and more recently refused to open a cycling event in Norway for the same reason. However at the same time we've been encouraging other people to make long journeys by offering study tours. We can't continue to encourage it and have stopped offering tours, but unfortunately this won't be enough to stop people from making long journeys by motorised means to visit the Netherlands or other places in order to cycle short distances.

Harvey, Irma and Jose too

On the same weekend as I wrote this, on the same weekend as
the storms continue to cause havoc, The Guardian, a relatively
enlightened UK newspaper, ran an article about the joys of
flying to New Zealand to go on a 15 km bike ride. Other
stories covered by the press include how long it will be until
flights to Florida will be able to resume. Are we going to
continue to ignore the problem that we're creating ?

While it's impossible to say that the storms which are currently affecting millions of peoples' lives are directly the result of man-made climate change, it's widely accepted that even if they are not so caused, climate change will certainly have made their effects worse.

The people affected by these storms are suffering at present and we can all do a little to help. In the Netherlands, the Rode Kruis is organising a help effort. Give what you can, but think also about how your personal behaviour can influence future weather patterns.

None of us can continue with "business as usual". So far as transport is concerned, and transport is the subject of this blog, we need to reduce how much we use all motorised modes. Cycling can't "offset" motoring. It can't "offset" the burning of fossil fuels and there are no motorized modes which don't use fossil fuels. Are we, every one of us, individually, part of the solution or part of the problem ?

This blog post is based in large part on a presentation which I made in Assen in January. If you wish, you can read the original slides and a version of some of the text of that presentation.

A tank full of petrol ("gasoline," if you prefer), and what it means

We bought petrol today. It's quite a novelty for us, as we don't do it very often. The last time we bought petrol was way back on August 27th... 2007.

I've mentioned before that we're not really all that enthusiastic about driving, but today we made a short journey in our car and needed to fill up the tank.

It made me think: what exactly have we bought today ? Our tank full of fuel came to a bit more than 36 and a half litres. 36.5 l of petrol weighs about 26 kg. Burning that one tank full of petrol will put about 84 kg, a little more than my own weight, of CO2 into the air. That's the effect from just one tank full of petrol, which according to the manufacturer is supposed to be enough to drive around 500 km.

Petrol is amazing stuff. It has an energy content of 9.7 kWh per litre, so today we bought 355 kWh of energy for our 53 euros. The car consumes about 0.7 kWh produces 0.17 kg of CO2 per km driven.

A few years back, someone who set a world record by cycling over 1000 km in 24 hours calculated that his average power output was about 115 W for the entire 24 hours. That's someone at the absolute peak of what is possible, and his body generated about 2.7 kWh over a 24 hour period.

In light of this, I think it's reasonable to say that an averagely strong person doing an 8 hour shift at a physically demanding job would expend no more than 1 kWh per day at work, so we could say that in our tank full of petrol we've bought the equivalent of someone working hard nearly every day for an entire year, including weekends and almost all holidays. This cost just 53 euros. That really is a bargain.

Car manufacturers put a lot of effort into insinuating otherwise, but cars are actually quite amazingly inefficient. It seems no-one is really all that interested in making them any more efficient. Petrol provides an awesome amount of energy for a remarkably small cost, and pushing gently on the accelerator makes a car zoom along quite nicely. Anyone who's ever pushed a car any distance knows that there is nothing particularly efficient about it.

There is much hype over electric cars, even though they do little more than to shift the source of the output of that CO2 elsewhere. Many power stations are still coal power stations. In fact, many new coal power stations are still being built, all around the world.

When you burn coal at a power station you get only about 2 kWh of energy per kg of coal burnt. If instead of filling up a petrol car today we had charged batteries of an electric car with the same amount of energy by using electricity generated by coal, it would have required the burning of no less than 177 kg of coal, producing a whopping 518 kg of CO2 in the process. That's over 6 times the amount produced by burning petrol directly in a car. An equivalent electric car therefore would still consume about 0.7 kWh but produce over 1 kg of CO2 per km driven. That's being quite generous, as you never get so much energy out of a battery as you put into it when you charge it. With NiMH batteries, for instance, you get back out only about 2/3rds of the energy you put in - under ideal conditions.

Electric bicycles are also not so innocent as many people think. According to this pro electric bike website it costs 1.8 kWh in electricity to charge an electric bike battery for a 20 mile (32 km) range. That's nearly 1 kg of coal per charge. Even with their figures, which like mine for electric cars ignore the problem of inefficiency of rechargeable batteries, this indicates that an electric assisted bicycle, powered by electricity from coal, consumes about 0.05 kWh and produces about 0.08 kg of CO2 per km ridden.

Yes, so electric bikes, if charged by electricity generated by coal (in Australia, for instance, 80% of electricity comes from coal, and the majority of the rest from other fossil fuels), have a CO2 output per km which is only about half that of an average car with one occupant.

Public transport isn't all that much better either. The average bus occupancy in the UK is only about 9 people. Due to this, figures you can calculate for overall efficiency for the entire bus network are actually remarkably similar to those for single occupancy cars.

The same happens with trains. Only if you assume that electric trains take all their electricity from carbon neutral sources do they look particularly good. High speed trains are remarkably close in emissions to jet aircraft.

Here's a comparison of different passenger transport modes in the US. It doesn't much matter than it says BTU instead of kWh that I've been using. 3413 BTU are equivalent to 1 kWh, so divide these figures by 3413 to get equivalent figures to my calculations above:

As you can see, changing from one of these modes to another is really only about making a small change. Anyone who tells you that one mode of powered transport is incredibly more efficient than another is either selling you something, or is misinformed. However, it's big business (much like oil is) and there are plenty of people with a vested interest in trying to convince you that their motorised car replacement can change the world.

Lots of things are described as "green" but few genuinely are. There is a truly "green" alternative to these modes of transport. It's called a bicycle. No fuel is burnt. No CO2 emissions result. You do have to eat, however from what I've seen, people who drive don't eat any less than people who cycle.

All bicycles are wildly more efficient than powered vehicles. They have to be. Inefficiency makes you tired too quickly (compare pushing a bike with pushing a car). However, some bicycles are still more efficient than others and this makes a huge difference if you need to travel more than short distances. A truly "green" car-replacement for longer journeys looks like this !


The sharp eyed might notice we went to a BP station. I know some people are boycotting them, but frankly it's a waste of time doing so. In my opinion there is very little to choose between oil companies. They're all doing their best to make as much profit as possible from extracting oil from wherever they can get it, and they are all responsible for spills. BP was simply unlucky enough to have had their disaster where it was widely seen and reported upon. Boycotting one chain won't do any good. What really needs to happen is for people to appreciate what an amazing resource both oil and coal are, and to consume less of them.

Biomotion tour

The Biomotion tour came to Assen yesterday. Yesterday's event was at the TT circuit, and today we were in the city centre.

There were many alternative fuel cars, but to me other things were more interesting. There were a few electric vehicles of one type or another, but I don't need to write about those. Large car companies are quite capable of dealing with their own publicity (however there are details at the organiser's website). There were also a few small electric vehicles of one type or another and ours were the only purely human powered vehicles. We took along a selection of Sinner recumbents. Our new black demo Mango attracted a lot of looks.

It was a novelty to get to ride on the famous TT track. Someone there told me he'd ridden a bike around it before and found it hard going, and he was right. The surface does seem a little odd. Presumably it's designed for maximum grip for motorbikes cornering rather quickly. Also, the total lack of protection from sidewinds made corners quite "interesting" even at my speed.

The last time I was there was during the prologue of the Vuelta, but we were sitting in those seats that time around, not on the track.

The vehicles next to my Mango are Drymer electric assisted tricycles. It's a leaning tricycle with optional cover. Really quite good.

This vehicle isn't human powered at all, but I liked it. It's  a local school's entry in the Shell eco-marathon. 270 km on one litre of petrol is pretty good. I wish I'd had the opportunity to get involved with something like this when I was at school.



In other news, I've now had my Mango for one week and one day. It has 311 km on the clock. The total would have been higher, but yesterday it covered only the distance to the TT track and back, and today just the 4 km round trip to the city centre.
Read my review of the Sinner Mango Velomobile.