CoMF wrote:
AstroGeek wrote:
Cars constitute a massive amount of our CO2 emissions.
No, they don't, and they're a drop in the bucket compared to the CO2 emissions from electricity generation, heating, heavy transportation, and industry.
This really isn't the place to get into all of this. So I'll just address a few of your points. First:
Quote:
The transportation sector in Canada is a significant emitter of GHGs. According to Environment Canada, in 2007 transportation was responsible for 27% (200,000 kt of CO2 eq) of the total GHG emissions (747,000 kt of CO2 eq). Road transportation accounted for 69% 137,000 kt of CO2 eq) of the GHG emissions within the sector.
Source:
Greenhouse gas emissions from private vehicles, see page 8, as numbered by Adobe reader (not numbers on bottom of page).
These stats are, of course, from Canada. We use a lot of hydropower up here, so our emissions from electricity production should be lower than those in the USA. (Although we have higher emissions per capita overall, so maybe that's not the case).
Quote:
AstroGeek wrote:
Let's just say I'd envision high speed rail in certain areas,
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what source? You also realize that Maglevs aren't optimal for short distance or low speed travel, right?
I never said anything about maglev--it's still way too expensive. I'm just talking about conventional high speed rail. Once again, I'm thinking in terms of Canada (since it's what I know best) and for the time being it would really only be practical in the Quebec-Ontario region (there have been studies showing it could be done, if we were willing to invest the capital). Those provinces get most of their electricity from hydro and nuclear, both of which are relatively emissions free (yes, I know, you need to transport fuel to the nuclear power plant). Saving through increasing efficiency in other sectors would hopefully be enough to offset the increase in usage by high speed rail.
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AstroGeek wrote:
and regulation of what modes of transit could be used where.
There are already existing practical and economic incentives for not using a big honkin' SUV as your mode of personal transportation in metropolitan areas.
And yet some people keep driving them... But I was more referring to air travel in any case. Although I do like the idea of doing what European cities do and charging a toll for private vehicles to enter the city centre. The toll is then invested into transit infrastructure.
If you want to continue this discussion then you're welcome to copy this stuff into the Global Sustainability thread.
Last edited by AstroGeek on 06 Apr 2012, 9:43 am, edited 1 time in total.