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If the IPCC premise that the poles are warming relatively more than the tropics is accepted, I dispute this prediction.
In my opinion as an atmospheric scientist (meteorologist), it's unlikely that there's a correlation between the severe weather outbreaks we've...
One more point I meant to make...the pattern in the Northern Hemisphere was blocked for much of the early portion of this past winter season, with...
I've been working in the field of meteorology since the mid-1980s. Haven't noticed any differences with respect to the frequency of blocking...
For what it's worth, EPA uses a driving mix of 43% "city" and 57% "highway" for the U.S. light-duty vehicle fleet in its "MOVES" model (used to...
Actually, only the NOx emission standard is less restrictive in the Euro 5 than the California/U.S. emission standards. All other emissions limits...
That's a good point that the Golf TDI is based on a short time period of data, but even the Jetta TDI has "average" reliability since the...
I did and I'm not sure what you're referring to. According to the Consumer Reports web site, the 2010 Golf TDI has "above average" reliability...
Thanks for the charts. For the Audi A3 TDI, the certified NOx emissions are 0.05 g/mi based on the CARB cert you reference (not 0.5 g/mi), and...
Re: dirty diesels With all due respect to EPA, the problem with EPA's "Green Vehicle Guide" is that it's based on, and only on, the "Bin" to...
That was just a little meteorology 101. ;) As an atmospheric scientist/meteorologist, I'm just dissatisfied with the explanation for "more snow...
Just one beside-the-point comment... Atmospheric moisture is a necessary but not sufficient condition for heavy precipitation; large-scale lift...
Still seems to be a fundamental misunderstanding, generally, regarding the effectiveness of diesel after-treatment devices, especially with...
Hi Donee, That's true and I'm not disputing that. I'm just disputing that the current generation of "clean" diesel engines is significantly more...
Which "non-general" diesel vehicle would you like to compare it to?
There seems to be some misunderstanding, or at least old perceptions, of diesel emissions. Diesel do tend to have higher PM and NOx emissions,...
Perhaps. That's why I said it has not been MY experience that it is much more easy and cheap to keep a gasoline engine in good condition. My...
That's fine, but there are diesel vehicles in Europe that are certified as "zero" PM also (e.g., BMW F10 535d - VCAcarfueldata.org.uk - Search...
Direct quote from CARB (anything but a diesel supporter by the way)... PRELIMINARY DISCUSSION PAPER – PROPOSED AMENDMENTS TO CALIFORNIA’S...
Then explain the layer of soot inside the tailpipes of a virtually new SI vehicle (PFI, not DI). That has not been my experience.
