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Metropolitan DC Local Politics
Reply to "Expansion of Housing Choice Voucher Program in Ward 3?"
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[quote=Anonymous][quote=Anonymous][quote=Anonymous][quote=Anonymous][quote=Anonymous][quote=Anonymous]Who's "we"? Climate change has been an actual, legitimate, self-evident Smart Growth factor for decades.[/quote] Legitimate question here. Now that we have electric cars, why hasn't "Smart Growth" changed or reconsidered anything?[/quote] Because electric cars are not a magical solution to all Smart Growth-related issues. They're more energy-efficient than internal combustion engines, and they don't produce tailpipe emissions, but that's it. Everything else is the same.[/quote] The consistent problem with “smart growth” people is that they have a lot of belief but little facts. I did a little math and it turns out that for myself, driving an electric car to work has less GHG emissions than taking Metro. WMATA reports 367,000 tons of CO2 emissions on 182,000,000 trips in 2019. That’s 4 pounds of CO2 per trip or 8 pounds of CO2 round trip. EPA reports that a Tesla Model 3 has an efficiency of 0.259 kWh per mile. If I only charged from the grid, the current carbon intensity of the PJM Interconnection, which is the ISO that covers DC and Maryland regional ISO is 438g per kWh. Therefore a Tesla’s emissions would be 0.25 pounds per mile. My commute is 10 miles each way, so my round trip daily emissions would be 5 pounds. If I drive a Tesla instead of taking Metro, I would reduce my carbon emissions by almost 40%. That’s crazy. And this is why it’s important to have facts and data, instead of just making stuff up because it sounds good. [/quote] No, you won't, because you're not accounting for the lifecycle costs of the Tesla (among other things). That's like somebody saying that it costs them $3 to drive somewhere, because it takes a gallon of gas, and gas is $3/gallon. No, that's not the full cost. Plus you still need roads to drive the Tesla on, and parking spaces to park the Tesla in, and all of the many other things that go with driving a car.[/quote] This is someone that has no clue what they are talking about. This is not a financial comparison where you calculate depreciation. You are talking dollars, do you mean embedded GHG emissions? If you knew anything about transportation and if you have ever actually studied life cycle assessment in the sector (note, I have a masters degree in the subject), then you would surely know that the use phase produces the most significant emissions by far. You may want me I sit this one out friend. [/quote]
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