Failed the air system inspection for Arizona emissions. What does that mean? [more inside]
posted by nestor_makhno on Oct 22, 2009 - 6 answers

logistics of taking air filter out for emissions test? [more inside]
posted by figTree on Apr 23, 2009 - 10 answers

Where could I find a ranking of foods by their carbon footprint? [more inside]
posted by GIMG on Mar 10, 2009 - 9 answers

Candles vs fluorescent light bulbs smackdown: which produces more greenhouse gases? Which one is environmentally friendlier when you figure in all the emissions? [more inside]
posted by storybored on Sep 11, 2008 - 19 answers

If you believe climate change is real, bad, and man-made: does that mean it's wrong to take a flight or drive a car? Are there any reasonable excuses?
posted by MetaMonkey on Jan 28, 2008 - 24 answers

A few days ago my check engine light came on, so I took my car to an auto parts store and had them run a check. They said that the computer said I have a slow emissions leak. My cousin died earlier this week, and I need to drive approximately 100 miles this afternoon to go to her funeral. Is this safe? And when I take the car in, how much should I expect to pay for this?
posted by odayoday on Sep 21, 2007 - 10 answers

How many trees do I have to plant to offset commercial airflight? [more inside]
posted by visual mechanic on Feb 22, 2007 - 11 answers

How hard/expensive is it likely to be to get a ten-year-old Jeep to pass California emissions standards? [more inside]
posted by fuzzbean on Oct 19, 2006 - 8 answers

CarRepairFilter: Help me figure out what's going on with my usually well-behaved car, and what, if anything, it might have to do with a letter I got from Acura back in January... [more inside]
posted by Vervain on Aug 23, 2006 - 11 answers

Dang, those new year's resolutions... For the first time, I'm tempted to buy emissions "offsets" for my car in order to support the research and development of cleaner energy choices. Is this a good idea, or would I be wasting my money? [more inside]
posted by skyboy on Jan 4, 2006 - 4 answers

My truck failed an emissions test for the first time (in No. Virginia). It's a 1993 Toyota pick-up, 2x4, 2.4L - 4cyl. (ext. cab). I just turned 200,000 miles on it last month and replaced the muffler and tailpipe the day before the inspection. The failure is with the NO ppm test. It failed at both 15 MPH and 25, but not by much. Am I looking at a converter problem for sure or is there something I can do first before replacing it? What's the best way to approch this problem?
posted by Witty on Jun 10, 2004 - 5 answers