It very much depends where one is located. My parents' house, in a subtropical climate region, has had solar thermal for over 2 decades. Now they've also installed PV panels, but hot water is still mainly solar thermal with electrical heating as supplement.
New houses also have dual setups like theirs. Solar thermal collectors for hot water + PV for other electric usage and selling the excess to the grid.
> Also it is useless in the summer when you don't need heating.
You still do need some water heating in the summer.
Consider that Americans waste more energy and generate more greenhouse gasses that citizens in other, lower emitting countries pay for - we are all on the same planet.
Ultimately these discussions devolve to people just being bitter others having more than them.
But let's follow the deflection. Instead of monetary disparity, lets look at energy waste disparity. It was recently shown that the top 10% wealthiest Americans contribute to 40% of the greenhouse gas emissions in the country. As you said, we are all on the same planet. just because they have managed to grab a bigger piece of the pie shouldn't mean that they get to pollute the planet more than anyone else. In both cases the mindset needs to change and those at the top maybe need to be a little less greedy overall.
source: https://www.sciencedaily.com/releases/2023/08/230817163849.h...
When I say physical models here by the way I'm referring to physically-based mathematical models as well as numerical models.
It seems that the authors have done a good job in developing their model. My issue is with Nature deciding to publish it. If this paper was not published in Nature it would receive little attention within or without climate science - in fact many such statistical models are published each year without much comment. However, Nature have published a paper that I think many ocean scientists would feel draws dramatic conclusions from a weak basis but will now inevitably draw much more attention than more insightful papers.
MIT professor Carl Wunsch accused Nature in 2010 of near-tabloid science with a tendency towards sensational papers built on weak foundations. However, I've felt that Nature's choice of publications on climate in recent years has been high quality. This paper feels like a big step-down from that standard.
Other experts on the AMOC also cautioned that because the new study doesn’t present new observations of the entire ocean system — instead, it is extrapolating about the future based on past data from a limited region of the Atlantic — its conclusions should be taken with a grain of salt.
Source: https://www.washingtonpost.com/climate-environment/2023/07/2...
But what if they just understand time-value-of-marshmallow. Sometimes marshmallow now is better than marshmallow later.