Bike Share Map

Here’s a beautiful map showing real-time bike share usage, station by station, in cities around the world. This is the publicly available data. The NSA, of course, tracks individual riders as they ride đŸ˜‰


Carbon footprints smaller in city centers


Carbon footprints in metropolitan Philadelphia

The basis for comparison is not entirely clear from the picture: it says “population + employment”, so if we use less carbon on the job than at home, the city center gets a bonus. But something similar has been found in other cases: for central vs. suburban Toronto, see Norman, Jonathan, Heather L. MacLean, and Christopher A. Kennedy. 2006. Comparing High and Low Residential Density: Life-Cycle Analysis of Energy Use and Greenhouse Gas Emissions. Journal of Urban Planning & Development 132 (1):10-21; for Dortmund, see Wegener, Michael. 1996. Reduction of CO2 emissions of transport by reorganization of urban activities. In Transport, Land-Use and the Environment, edited by Y. Hayashi and J. Roy. Dordrecht: Kluwer. There’s some discussion of this in my paper on road traffic externalities and the competitiveness of walkable retail.

For more discussion of the study behind the map, see Brendon Slotterback at streets MN.

Go Glenda

As you’ll learn at the finish, “nothing unparliamentary has occurred here”.

Also note: Ding Dong the Witch is Dead rockets to number one in iTunes download chart. Normally this would lead to BBC Radio One (the public broadcaster’s pop music channel) putting it at the culmination of its Sunday chart countdown, but precedent may be broken in this case.

How can we explain all this giddy disrespect for the deceased?
Continue reading

Eric Hobsbawm – late interview

When I was first at Birkbeck, this guy was still a regular in the staff canteen – so I must be getting on a bit myself! The interviewer is the current Master of Birkbeck, David Latchman. The revelation that several of Hobsbawm’s best books were essentially his Birkbeck lecture notes does raise the bar for the rest of us, just a bit.