I’m not a very regular cinema-goer, so I’ve never felt particularly passionate about the campaign to bring one to Crystal Palace. But I do fully support the Picture Palace campaign in trying to keep 25 Church Road as an assembly/leisure building for the local community, in the face of repeated attempts to turn it into a church. We have planning rules that designate the building a certain “use class”. This one is D2, which means it is protected for uses like a cinema, dance, concert or bingo hall, gym or skating rink. It’s the only facility of its kind in an area already blessed with lots of fantastic places of worship. This area of planning policy exists to ensure we have a good mix of facilities in the local area, and can be used by councils to prevent communities being overrun with cafes and takeaways, or losing valuable office space. I hope…

Read More Saving 25 Church Road, Crystal Palace

Following yesterday’s post on making London more dense, Tim Lund suggested I do a slightly more sophisticated analysis. Planners in London use a metric called the Public Transport Accessibility Level, or ‘PTAL’, which does pretty much what you’d expect. Rules for things like car parking levels and the density of housing you should build are based on these, because obviously if you’re in central London you have no need for a car and you can justify quite tall blocks of flats, but in low rise suburbia with only sporadic bus services it’s accepted that more car parking and less dense housing is appropriate. So if you were to follow these rules, how much more housing could you build in London? First, I took the data for PTAL levels (the map on the left). Then I took my wards, sliced up to remove any areas that cannot be built on, cut…

Read More Densifying London (part two)

How do we build more homes in London? The Mayor’s latest exercise assessing needs suggests we need up to 690,000 over the next ten years, but a parallel exercise looking for land only came up with sites for 420,000 homes. The usual debate is whether or not we build in London’s greenbelt to make up the difference. But there are at least three good reasons not to go down this route to solve our problems: there are an awful lot of protected habitats that we really cannot build on; building sustainable developments around transport hubs and avoiding those habitats could only deliver (in Andrew Lainton’s estimation) 72,000 homes; and if we ignore these,  it could lead to more low density, car-dependent urban sprawl, which the greenbelt was established to prevent. The alternative, or perhaps complementary, approach is to make London more dense, particularly around transport hubs in sprawling, low density…

Read More Making parts of London more dense

At the Green Party autumn conference, I attended an early morning panel discussion on population. I wrote about this in a recent blog post, describing the debate between a representative from Population Matters and Sebastian Power from the Green Party. I also mentioned that Sebastian offered during the debate to send references for his claims to anyone who was interested in what he said. Now that he has sent these around, I wanted to write a third (and hopefully final) blog entry on the population debate. Having followed up his references, I felt I had to write this because so many people in the conference audience and more widely will have heard his arguments and heard his claim that he based them on solid, scientific references. He also made the same arguments in an article for the internal magazine, Green World, and I have heard the same arguments from several other party members.…

Read More Do the ‘population doesn’t matter’ arguments stand up to their own evidence?

The population debate rumbles on. David Attenborough crashed back into the debate with a pretty crass set of remarks about not sending food aid to places struck by famine, earning lots of impassioned responses. The activist-comedian Robert Newman wrote an interesting piece pointing out that population growth is tailing off so claiming it really isn’t the issue, and so it continues, round and around. At the Green Party autumn conference, I attended an early morning panel discussion on population. We heard from a speaker from Population Matters, who argued that our impact on the rest of nature is a function of our population, our affluence (and inequality) and our technology. I explored this “IPAT” formula a bit in my previous blog entry. Then Sebastian Power made more or less the same case as Newman – that we suffer from (in his words) “rich white men” consuming too much, not too…

Read More What is the population question?

Green Party leader Natalie Bennett recently took a strong stance on migration, warning of the dangers that the other parties risk when stoking up public anger about population. She rightly suggested that we shouldn’t blame migrants for problems with the NHS, schools, housing and jobs. Instead, we should be concerned about the failure of misguided economic policies that have caused these problems. In response, three members of the Green Party wrote a letter to the Guardian saying that they, and many other Greens, are concerned about migration as well as the nasty rhetoric. The authors of the letter wrote: Many of her party’s supporters are as concerned as the rest of the public about a high level of net immigration, mainly because it is a major contributor to population growth. This adds to the uphill task of protecting our environment and moving the economy to an ecologically sustainable one. A…

Read More On migration, population and ecology

Following my previous blog post about the Young Greens and lots of discussion with friends and fellow party members, I want to set out clearly why ecology defines my philosophical basis rather than social and environmental justice.

To avoid misunderstandings from the outset, I think social and environmental justice are important, but they don’t define my political philosophy.

The new philosophical basis of the Green Party says:

A system based on inequality and exploitation is threatening the future of the planet on which we depend, and encouraging reckless and environmentally damaging consumerism…. The Green Party is a party of social and environmental justice, which supports a radical transformation of society for the benefit of all, and for the planet as a whole.

This sounds great! What could be wrong with that? I hope I might persuade you why I don’t think it is quite right, or at least encourage more thought and debate about political philosophy and the precise meaning of different terms. Read More My politics of ecology and justice

OpenEcoMaps, eco-living maps using OpenStreetMap data, is now working again. Hooray! I decided to sit down and work out why the OpenLayers interface wasn’t working and it turned out to be quite simple to fix. You can now browse around maps of low carbon energy generators in London, veggie restaurants in Edinburgh, allotments in Exeter, recycling facilities in Glasgow and more! The data is updated every hour, direct from OpenStreetMap, and is available on maps and downloadable/reusable KML and GeoJSON files. The code is also in Github, so you could set-up your own version for another country if you like. There are still some of the layers that aren’t working because the underlying data isn’t being extracted from OpenStreetMap properly. But I’m very glad that, after well over six months with it completely broken, the web site basically works again!

Read More OpenEcoMaps is back!

For almost a year now, my pet project OpenEcoMaps has been broken. The vagaries of unreliable XAPI servers meant the system couldn’t download OpenStreetMap data to create all the KML files, and (I think) some changes to OpenLayers meant the web maps also stopped working. It has taken me a long time to work up the energy to fix these. Today I can happily say one half of the system is now working again, and the underlying code is much improved. OpenEcoMaps KML files, and now GeoJSON files, are being created again. Hooray! I switched from XAPI to the Overpass API; grabbed JSON which enabled me to write a more powerful function to turn this into usable objects (for example building a complete Python object for an allotment merging data from relevant nodes, ways and relations); wrote a new library to create GeoJSON files; refactored everything else to fit with…

Read More OpenEcoMaps halfway back