The closer you live to the centre of the city, the more likely you are to have a councillor who fares well in today's report card by environmental advocacy group Ecology Ottawa.

We've mapped the results of Ecology Ottawa's annual report, which assesses how Ottawa's 23 councillors voted on 12 different matters of environmental importance.

The darker the colour, the lower the grade. The two brightest wards are right in the urban core: Somerset, represented by Diane Holmes, and Capital, represented by former federal Green party deputy leader David Chernushenko.

That unseemly black blob in the city's southeast corner is Doug Thompson's ward. The Osgoode councillor received the only D from Ecology Ottawa, which also handed out nine Cs, nine Bs, and four As. Interestingly, there also seems to be a bit of an east-west divide on environmental issues, with councillors in the west end performing better overall than their eastern counterparts.

Greater Ottawa's David Reevely had this to say about the report:

The usual caveats apply to a report card of this nature. Sensible people could disagree on what the “pro-environment” choice was on some issues, like whether the price of the OC Transpo UPass should be raised. Ecology Ottawa finds voting against the price increase the pro-environmental choice, which is a reasonable position to hold; OC Transpo’s argument is that the transit system needs financial support and can’t run if riders are too heavily subsidized, which is also a defensible view. On the whole, though, the votes involved are pretty straightforward.

Understanding the votes might be straightforward, but apparently tabulating the voting records is less so. Because one councillor pointed out a couple of errors:

Both Blais and Kanata South councillor Allan Hubley voted against the lanes, and since Ecology Ottawa recorded the lane vote as passing unanimously, that probably means both of their grades are a bit high. Good on Blais for being so transparent, even if his tweet is kind of like going to your teacher and arguing you deserved to fail that English essay, not pass it.

If you want to read Ecology Ottawa's entire report (it's not long), we've embedded it below. The organization has been grading city council since 2003, and if you want to pore through those report cards, they can be found here.