Comment by AnthonyMouse
14 hours ago
> US citizens still emit over 50% more CO2 each
The problem the US has per-capita is lower population density. The majority of the US population lives in suburban or rural areas without mass transit and changing that on the relevant timescale is not feasible. It also has major population centers in areas that experience winter and thereby have higher energy costs for heating, exacerbated by the lower population density (more square feet of indoor space to heat per capita), with the same infeasible timescale for changing that.
As a result, the only way to fix it is to switch to other forms of energy rather than having any real hope of significantly reducing consumption in terms of GWh. Use more electric cars and hybrids, generate electricity using solar, wind and nuclear, switch from fossil fuels to electric heat pumps for heating, etc. But that's largely what's happening. The percentage of hybrid vehicles goes up, despite Trump's posturing nobody actually wants coal, ~100% of net new generation capacity in recent years is solar and wind and even when new natural gas plants are built, they're displacing old coal fired ones, which results in a net reduction in CO2. It would be nice if this would happen faster, but at least the number is going in the right direction.
The problem China has is that they've been building brand new coal fired power plants at scale. WTF.
Assume the avg. home will last 50 years. Limit construction on new suburban developments, problem solved in 50+ years. It would be unpopular, but you claimed it wouldn't be possible, very different. The latter is denying agency in the situation.
> Assume the avg. home will last 50 years. Limit construction on new suburban developments, problem solved in 50+ years. It would be unpopular, but you claimed it wouldn't be possible, very different.
The impossible part of "problem solved in 50+ years" is the 50+ years when you need it to be solved sooner than that, and it can be solved sooner than that by doing something else, namely electrifying heating and transportation and using renewables and nuclear to generate electricity.
We're kinda doing that, through zoning requirements and NIMBY politics. It is, as predicted, very unpopular, and has a number of unfortunate side effects like rising homelessness, declining fertility, and increasing inflation.
On the plus side, we're going to have many fewer people in 50 years, which will lead to correspondingly less CO2 emissions.
You listed out a whole lot of excuses for America, suburbia this, heating that, etc etc, etc...
Now an assignment - you are Chinese and you have 1.5bn people in your country, lets hear it? You think you can't reasonably list 100x "excuses" for their "issues" and "reasons" for CO2 consumption?
They are working a lot harder than pretty much all other countries combined to usher in renewables and many other things while we elect people who don't know what wind is/does and stare at the Sun during the eclipse.
What excuse actually is there for building new coal plants instead of directing the same labor to building more nuclear or renewable generation? There is no reason to build coal, Trump is a schmuck for proposing it but China have been the ones actually doing it.
Chinese demand is increasing just like everyone else's, and they're both retiring older less efficient plants and using fossil fuels as both peaker and baseline generation. But coal utilization overall, despite massive growth in energy demand, is basically flat in China. There's plenty of reason to build out coal capacity to keep grids stabilized while you transition to solar and wind (China finished their 2030 1200GW solar capacity target 6 years early in 2024 and continue to grow that number at an incredible rate).
I agree that new coal sucks but it's a very easy talking point for westerners like us to latch onto when our own contributions to emissions remain way over 50% higher per capita - despite much of the manufacturing and such not happening in our countries.
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They are also building more solar panels and wind turbines than the rest of the world combined, and are the biggest investor in renewables. Their emission of CO2 just recently peaked. But they need a lot of power, and most of the new coal plants are there for days when there’s neither sun or wind.
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China needs some form of dispatchable power and is basically using coal instead of gas because they have none. See https://news.ycombinator.com/item?id=47276338 for numbers/more detail.
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They are building coal for things that cannot yet be handled by renewables because coal is the fossil fuel natural resource they have the most of.
It's the same reason it was the dominant fossil fuel for electricity in the US until the shale revolution made natural gas cheap and abundant.
The reasons Trump is a schmuck for pushing coal are (1) he wants it instead of renewals rather than as a way to help fill the gap between renewables and what we need until we can build enough renewables and storage, and (2) in the US that makes no sense because because natural gas can fulfill that role and is better in pretty much every way that coal.
Compare to China which is putting vast amounts of resources into building renewables, storage, and also a nationwide UHV distribution network (currently 40-50000 km compared to ~0 in the US) which means local variations in solar/wind can increasingly be covered by non-local renewables, which should reduce the need to fire up those new local coal plants.
> What excuse actually is there for building new coal plants
Just that they're still 'developing' and aren't even close to the historical contributions of the US?
Assuming you're American, it's a bit rich to have contributed more in absolute terms and then tell other countries what they can't do.
Explain me why the average car in the US is a tank with horrible fuel economy? In rural I can sorta see it. But in cities, why drive a truck? These are all choices that America makes.
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⬆ what he said