3 ms·

Not accurate, short-haul flights are. Means of Transport CO2 equivalent emissions per passenger km Short Flight 255g Medium Car (Gasoline) 192g Medium Car

by wilg 3y ago

Not accurate, short-haul flights are. Means of Transport CO2 equivalent emissions per passenger km Short Flight 255g Medium Car (Gasoline) 192g Medium Car (Diesel) 171g Medium Flight 156g Long Flight 150g Bus 105g Medium Motorcycle 103g Gasoline Car (Two Passenger) 96g Medium Electric Vehicle 53g National Rail 41g Ferry 19g Eurostar (International Rail) 6g https://www.visualcapitalist.com/comparing-the-carbon-footprint-of-transportation-options/ https://www.visualcapitalist.com/comparing-the-carbon-footpr... Also, electric cars with multiple people manage to beat rail: https://www.pawprint.eco/eco-blog/green-myth-busting-train-vs-driving https://www.pawprint.eco/eco-blog/green-myth-busting-train-v... Side note: Hacker News should support tables, and shouldn't strip emoji.

Symbiote 3y ago
Your figures don't add up. Divide the electric car by 4 or 5 and it's still more than the electric Eurostar train, and that's a high speed train too.
- wilg 3y ago
  Yeah but it still beats the other trains, which is very surprising. Also my second link has more info. I’d prefer better sources on all of this though.
  - Symbiote 3y ago
    The source is probably an older edition of [1]. The source for that is partly [2]. That splits the figures into 35.2g / passenger-km for electric, and 704.4g for diesel. The per-vehicle-km figures have a 1:3 ratio, but the per passenger figures nearer 1:20, so I think the huge disparity is due to electric trains being on much more heavily used lines. With Eurostar being 6g, they must have very high usage, or maybe the older electric trains really are much less efficient than the newest ones. [1] https://dataportal.orr.gov.uk/media/1843/rail-emissions-2019-20.pdf https://dataportal.orr.gov.uk/media/1843/rail-emissions-2019... [2] https://dataportal.orr.gov.uk/statistics/infrastructure-and-emissions/rail-emissions/table-6100-estimates-of-normalised-passenger-carbon-dioxide-equivalent-co2e-emissions/ https://dataportal.orr.gov.uk/statistics/infrastructure-and-...

by wilg 3y ago

Symbiote 3y ago

Your figures don't add up. Divide the electric car by 4 or 5 and it's still more than the electric Eurostar train, and that's a high speed train too.

wilg 3y ago
Yeah but it still beats the other trains, which is very surprising. Also my second link has more info. I’d prefer better sources on all of this though.
- Symbiote 3y ago
  The source is probably an older edition of [1]. The source for that is partly [2]. That splits the figures into 35.2g / passenger-km for electric, and 704.4g for diesel. The per-vehicle-km figures have a 1:3 ratio, but the per passenger figures nearer 1:20, so I think the huge disparity is due to electric trains being on much more heavily used lines. With Eurostar being 6g, they must have very high usage, or maybe the older electric trains really are much less efficient than the newest ones. [1] https://dataportal.orr.gov.uk/media/1843/rail-emissions-2019-20.pdf https://dataportal.orr.gov.uk/media/1843/rail-emissions-2019... [2] https://dataportal.orr.gov.uk/statistics/infrastructure-and-emissions/rail-emissions/table-6100-estimates-of-normalised-passenger-carbon-dioxide-equivalent-co2e-emissions/ https://dataportal.orr.gov.uk/statistics/infrastructure-and-...