benjhm

joined 2 years ago
[–] benjhm@sopuli.xyz 2 points 2 years ago (1 children)

Could be good, might need also a talk page, 'rules' (effort for mods) ...? I suppose not too much demand on servers if just plain text, but how does this federate? For example, if I read a slrpnk wiki from sopuli, does sopuli have to pick up every edit, or only if I visit a page, or do i need an account on slrpnk to use it ?

[–] benjhm@sopuli.xyz 1 points 2 years ago

What a surprise! .../s But the Loss and Damage fund is a very delicate issue, was progress even to get some countries to agree the concept exists. Seems to me, that the "developing" countries are right about the 'World Bank' issue, but fundamentally wrong to insist on retaining 1990 definitions of country groups, the situation changed enormously over 33 years. For example the per capita emissions of China are higher than the european average for many years now, and those of the Arabian gulf are the highest in the world. The impact on the atmosphere depends on historical emissions, but not on their simple sum - there is a decay over time as most of the CO~2 ~ goes into the ocean and other sinks. Unfortunately the subtleties of such science don't penetrate to those 'high' level discussions (been there, tried that).

[–] benjhm@sopuli.xyz 2 points 2 years ago

Trying to downplay this problem seems stupid, not just for the climate, but because every molecule of methane belched out is wasted 'fixed' carbon - potential food - so tackling this should be a win-win issue.

[–] benjhm@sopuli.xyz 2 points 2 years ago (3 children)

Can you elaborate, how that would work ?
Indeed could be good to keep longer-term ideas, rather than just reaction to news.

[–] benjhm@sopuli.xyz 1 points 2 years ago

A Crisis Database should be useful - for example as a driver of migration which I consider modelling over long timescales. But the text examples given in sec2 seem a bit vague - for example, it implies that the French revolution occurred despite an 'improved' climate, but fail to mention the important eruption of the Laki volcano in Iceland 4-6 years earlier (maybe a temporal resolution issue?) . They also give examples from Qing China, Ottoman empire, and Mexico - any opinions about the relative importance of factors mentioned?

[–] benjhm@sopuli.xyz 2 points 2 years ago

Those polar stratospheric clouds have surprised us before in spring, and chemistry up there can be counterintuitive, but seems this is not a long-term trend.

[–] benjhm@sopuli.xyz 7 points 2 years ago

To separate the effect of demographic differences from the expenditure, might help to divide by an age-weighted population, rather than simply per capita. Also, is this expenditure converted to US$ in MER or PPP (for services the latter makes more sense)?

[–] benjhm@sopuli.xyz 3 points 2 years ago

Ah, that time of year again, seems a pity to waste them, but very hard and sour, and I'm told we shouldn't eat any pips. Polish friends slice them thin, put in a pan alternating with layers of sugar, leave some days to suck out the juice (osmosis), drain and mix with vodka for a tasty aperitif, thick and cloudy due to the pectin (?). I've not heard of fermenting them directly, but would be glad to know if anybody has a good method.

[–] benjhm@sopuli.xyz 2 points 2 years ago

Good summary, thanks.
I learned to code when RAM was 32K and storage was a cassette, we had motivation to be efficient.
Now making a climate model run interactively in a web browser, similar principles still apply.

[–] benjhm@sopuli.xyz 2 points 2 years ago

Phytoplankton fix loads of CO2, especially where there are plenty of nutrients, but most of it gets recycled in the surface ocean (and so back into the atmosphere), only a small fraction gets down to deep layers. Copepods, being heavier, help some to sink through, so it seems they're proposing to study more what makes these thrive, but it's not clear from linked info what's specifically new in this project, nor that there is any practical intervention proposed.

Once I had a tank with marine plankton which brought the CO~2~ in the headspace above down to just 5ppm..., sometimes the most revealing experiments are not the ones you intend.

[–] benjhm@sopuli.xyz 2 points 2 years ago (1 children)

One issue may be that there are a wide range of numbers for the relative warming potential of CH~4~ (methane), compared to CO~2~. Main reason is that this depends on the time horizon you care about - the shorter it is, the more methane counts. So it's not such a big deal for long-term sea-level rise, as for earlier impacts such as ecosystems.
Moreover the relative warming potential CH~4~/CO~2~ inevitably changes over time, not because the science changes much, but as the atmosphere changes. The lifetime of methane in the atmosphere increases as its concentration rises, since it's removed mainly by OH radicals of which there is a limited supply. While the warming effect of each new ton of CO2 decreases as its concentration rises, due to saturation of its absorption band in the infrared spectrum. Consequently, the ratio of these two keeps changing. In general, methane is getting relatively more important, not less.

[–] benjhm@sopuli.xyz 5 points 2 years ago (1 children)

Hope she sticks to her position.
Glad to see at the end "the Party of European Socialists suspended Smer and Hlas."

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