ced

80% of the US lives in "urban" areas (https://en.wikipedia.org/wiki/Urbanization_in_the_United_Sta...), and that's where most of the emissions are from. It's not geography that causes the low density, it's urban sprawl and culture. Eating might not be optional, but living in a car-centric low-density neighborhood definitely is. It's one of the things our ancestors would consider a luxury, and which our ever-comparing north american minds now treat as a basic necessity.

Maybe it's just quibbling, but anyway, per-capita Germany is among the worst but not the worst.

    Australia: 16.8 tons/capita/year
    Canada/US: 16.1
    Germany:    9.1
    China:      8.0
    France:     5.0

It benefits home owners, which (at least in Canada) makes up the majority of the voting base. Like GP said, it's at the expense of the next generation of buyers.

The lower the energy used by a generator, the higher its efficiency would be; a 100%-efficient electrolyser would consume 39.4 kilowatt-hours per kilogram (142 MJ/kg) of hydrogen,[24] 12,749 joules per litre (12.75 MJ/m3). Practical electrolysis (using a rotating electrolyser at 15 bar pressure) may consume 50 kW⋅h/kg (180 MJ/kg), and a further 15 kW⋅h (54 MJ) if the hydrogen is compressed for use in hydrogen cars.

It's not great, but it doesn't seem unworkable. I can't read the article, but isn't the idea to use hydrogen tanks as a battery to smooth out the variability of renewables like solar?

At a cursory glance, it seems like it's still ongoing, at a price of 8$/ton: https://www.icf.com/insights/public-policy/china-carbon-pric...

It feels like a problem for information theory.

What critical industry will suffer if air travel suddenly becomes much more rare?

Memory leak. As explained, it's not really Julia's fault.

This I also found amazing: https://github.com/JuliaLang/julia/issues/28726 . It took 4 hours to go from bug report about bad compiler code generation to a patch.

Julia works really well for power users. There are no huge libraries full of C code like pandas or scipy. Instead there are dozens of small, well-tested packages that fill the same role, all hosted on github. That makes fixing issues so much easier.

Granted: outside of numerical/technical computing, the libraries can be lacking (eg. web development) compared to other languages. We're doing it anyway, but it's a more difficult decision.

Because the majority of humanity has never flown at all. What fraction of your CO2 emissions came from flying last year?

GGP suggested that suburban living is greener. How does the 50%/70% support his point if cities include the suburbs?

It is unclear if phytoestrogens have any effect on male sexuality, with conflicting results about the potential effects of isoflavones originating from soy. A 2010 meta-analysis of fifteen placebo-controlled studies said that "neither soy foods nor isoflavone supplements alter measures of bioavailable testosterone concentrations in men."[31] Some studies showed that isoflavone supplementation had no effect on sperm concentration, count, or motility, and had no effects on testicular or ejaculate volume.[32][33] Sperm count decline and increasing rate of testicular cancers in the West may be linked to a higher presence of isoflavone phytoestrogens in the diet, but such a link has not been definitively proven.[34] Furthermore, there is some evidence that phytoestrogens may affect male fertility, but "further investigation is needed before a firm conclusion can be drawn"

Work part-time? I get 1-2 days off per week for projects (and house stuff) then in the evenings/weekends I actually have time and energy for playing with my child.

Plus, it's better for the environment than more work, more consumption.

It's ridiculous to think that reduced demand for some stock will not reduce its price.

More concretely, the more banks and people make gestures like this, the easier it is for politicians to reduce subsidies / increase taxes for fossil fuels, which will definitely reduce the amount of oil burned.