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Questions tagged [vehicle]

device with wheels used for transporting people and/or goods. For questions specifically about [cars] or about [transport] in general, use those tags.

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Are solar powered cars sustainable and are they a good idea for future transportation?

As population rises, fossil fuels will start depleting so are solar powered cars a good idea? How much power can they produce when it is cloudy?
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49 views

Are there any unsustainable supply-chain issues unique to hydrogen fuel cell vehicles?

I was recently reading that lithium mining for electric vehicle batteries is wreaking havoc on deserts in Chile. One proposed alternative to EVs in the search for a replacement for petroleum-fueled ...
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3answers
146 views

Method of transport with decent speed/low cost without a driving license?

I'm looking for something a little bit better than your average bike in terms of transportation potential, but cannot be a license-required vehicle as I cannot get a driver's license. I also don't ...
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136 views

Most sustainable vehicle that shelters from rain

I usually travel by bike, and it's a great vehicle and is mostly sustainable. I love travelling by bike when the weather is nice, but what all the pro-bike propaganda never mentions is that one very ...
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3answers
111 views

Is there any way to recycle air-pollution into fertilizer?

Vehicles and Factories produce air-pollution like Nitrogen Dioxide (NO2) and Sulfur Dioxide (SO2). Plants use Fertilizer with those same compounds (NO2 & SO2) So, is there any method to capture ...
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148 views

Being a sustainable Digital Nomad in a Van - First Steps

I am considering the purchase of a retrofitted Ford Transit with a Diesel motor to have a more flexible option for travel and accomodation. Since I aspire to reduce my footprint (and increase my ...
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2answers
94 views

The more miles a car drives, the more economical battery packs become?

I was reading here: Here’s How Electric Cars Will Cause the Next Oil Crisis, that the more miles an EV drives, the more economical battery packs become. I don't understand this assertion. I see ...
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2answers
5k views

Impact on environment: a million horses vs a million cars

Would commuting on a horse be more eco-friendly? What if there were millions of people did that? Would millions of horses be better than millions of cars?
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1answer
76 views

Where can I find a detailed technical description of a system to use Biogas as a Vehicle fuel?

It is basically possible to upgrade Biogas to something very close to natural gas, and then use it to replace said gas. Biogas to grid is a mature technology now, with about 100 active plants in ...
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1answer
363 views

Efficiency of car-sized vehicles running on train tracks

New Zealand doesn't have particularly advanced technology for its railroads, but I have seen pickup trucks that have wheels that can run on railroad tracks as well as a separate set of wheels with ...
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10answers
29k views

What are the pros and cons of electric motors vs. internal combustion engines?

What are the pros and cons of electric motors, compared to internal combustion engines, from a sustainability perspective? Are electric motors better for the economy, more efficient, or more ...
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3answers
201 views

What to do with an old vehicle?

I have a 1975 Ford F-350. It gets 6 miles per gallon. I don't use it any more. If it was fuel-efficient, I think I should get it in to someone else's driveway, so it can reduce the demand on new ...
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3answers
353 views

Older biodiesel vehicle or newer but used hybrid, which is actually more sustainable?

I've heard a lot of back and forth on this issue, but when purchasing our next vehicle which is actually the better way to go? For us, we cannot go fully electric at this point due to drive times, ...
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175 views

How do I calculate if it is more sustainable to have my groceries delivered?

I have been wondering recently whether having my groceries delivered is a net ecological benefit or not. It is highly likely that the overall environmental impact of the diesel used to delivery my ...
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2k views

Is my car more sustainable with or without an EGR?

I drive a 2003 Volkswagen Jetta with a 1.9 liter turbo-diesel engine. I often get well over 50mpg on the high way, and I love the fact that I have such a fuel-efficient car that is also fun to drive. ...