11–20 of 36 posts
https://www.vejdirektoratet.dk/sites/default/files/publicati...
Wrong question, the right one is: How to make 10 billion people live with decent life standards and comfort without destroying the planet?
The standards probably have to be really lowered... If we believe this data[1], one would have to live like a resident of Sri Lanka, Jamaica or Myanmar so that 1 earth is enough per year (other countries are available). Pessimistically, with the planet we currently have, not all 10 billion can live decently, and the minority who control the weapons would probably rather resort to violence rather than share things equ…
Dilemmas...
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This is nonsense, global warming is real and it's implications are visible already.
Whether we are smart is irrelevant when we are lazy, selfish and greedy.
I read those three reasons and see: weight, weight, and weight! Of course a 9000lb hummer EV is going to require more raw materials and work to build, more energy to move down the road, and more effort to dispose of... But all that diminishes in favor of the EV if the EV is built less like a Decepticon land yacht and more like a minimalistic car. Combustion cars have more of a static mass from the drivetrain they hav…
Just look at the rear design of the BMW i3: https://en.wikipedia.org/wiki/BMW_i3#/media/File:2021_BMW_i3...
I'm still at a loss on why they designed it that way.
I copied this from a climatologist's twitter last year but can no longer find the source, I suspect they've deleted their account: > All other things being identical, if an EV made from metals that were processed with green electricity only has one (1) order of magnitude less emissions than a petrol engined vehicle of the same size over the vehicle's lifetime, the equivalent EV where the metals were smelted with coal…
The “cradle to grave” calculations for ICE vs EV (ie, inc manufacture & decommission) are quite stark: even without assuming green electricity EVs have—-at most—-only 32% of their ICE counterparts emissions.
Now 1/3rd doesn’t sound that great, but remember: that’s a worst case scenario for EVs and doesn’t include the long term recycling benefits either.
Not least: 2/3rds less car emissions would be a game changer for air quality & the climate.
What I miss the most in the EV vs ICE talk is road noise levels. EV's are not necessarily less noisy at city speeds, unlike what seems logical, they are louder at above ~30km/h. Here's an example (PDF warning): https://www.vejdirektoratet.dk/sites/default/files/publicati...
Basically tire noise will be the same on the same weight car with the same type of tires, EV or ICE. It’s just most EVs at this point are larger or heavier.
https://www.thefp.com/p/your-iphone-was-built-with-child
Does anyone have numbers of resource usage of an EV compared to, say, an iPhone?
Or, for better perspective, compared to an electric bus divided by its average number of passengers per day?
I know, there won't be a single definitive answer to the latter question.
But I think the problem with vehicles is mostly their numbers and artifical abundance.
I'm all for EVs, but against any state subsidies to purchase one.
After all, the list price doesn't even include any "externalities".
Taxing the s.. out of individual vehicles (in other words, cash the externalities) and going strong on public transport, that would be "Better for the Environment"
The current dichotomy is a self-imposed dilemma with no right answer
I read those three reasons and see: weight, weight, and weight! Of course a 9000lb hummer EV is going to require more raw materials and work to build, more energy to move down the road, and more effort to dispose of... But all that diminishes in favor of the EV if the EV is built less like a Decepticon land yacht and more like a minimalistic car. Combustion cars have more of a static mass from the drivetrain they hav…
FWIW, it doesn't have to be a land yacht to look like an angry Decepticon. Just look at the rear design of the BMW i3: https://en.wikipedia.org/wiki/BMW_i3#/media/File:2021_BMW_i3... I'm still at a loss on why they designed it that way.
I read those three reasons and see: weight, weight, and weight! Of course a 9000lb hummer EV is going to require more raw materials and work to build, more energy to move down the road, and more effort to dispose of... But all that diminishes in favor of the EV if the EV is built less like a Decepticon land yacht and more like a minimalistic car. Combustion cars have more of a static mass from the drivetrain they hav…
Fossil fuel lobbyists are really smart: for EV everyone is talking about weight and no one is talking about energy efficiency aka joule per distance.
Thats kinda besides the point though, as operational energy efficiency is not the same thing as lifetime carbon emissions.
1) what is the carbon footprint of an EV vehicle when we are recycling batteries
2) what is the carbon footprint of an EV as we increase efficiency/range
3) what is the carbon footprint of an ICE as they increase range
The reason this might be interesting is that EVs, I believe, are still in their infancy and are likely to continue to see considerable jumps in efficiency.
ICE vehicles are not seeing these efficiency gains at the same rate. The technology is fairly stale. However ICE cars are getting more powerful. With a 2l 4 cylinder engine now getting 200+ hp, which I think would have been unimaginable a decade ago.
So where do these developments run in the future?
