That 12 weeks almost certainly doesn't refer to what you think it refers to.
It appears to be a somewhat arbitrary notion of how long would it take the full storage to be completely depleted, if it was being partly offset by continuing renewable generation over that time.
This accounts for the most initially bizarre claim of the paper, that introducing bioenergy into the system (i.e. storage of natural gas from non-fossil sources) would increase this 12 week period to a full year:
> Interestingly, the decrease in renewable overcapacity in parallel to the increase in overall storage volume means that the period when storage is fully used, that is, the period that defines storage requirements, is prolonged to more than 1 year (10 October 1995 to 3 February 1997).
But obviously a longer period is actually better by this weird metric.
They give some more reasonable numbers of 12 days of energy storage elsewhere, which corresponds with figures given in models like this one, which suggest 13 days of power-to-X fuel would be a low cost optimum for Germany:
i.e. the stored gas would if burned and used exclusively for electricity production would last 13 days as it equals 4% of the total electricity production. Of course, it wouldn't be used in that manner, but in concert with other energy sources, leading to the inflated number you quote from the paper.
And of course, an electricity system that burned 4% fossil gas would hardly be the end of the world. I personally would rather see nations do that and pay a carbon fee to let poorer nations achieve their low hanging goals than obsess about the last 4% in an unhealthy and (often seemingly intentionally) conuterproductive manner.
Humm I've heard somethings about Dubai starting to require more than an 'empty room' for companies wanting to sell their services there or something like that, but not many more details
According to various comments, Telegram seems to be blocked there. Might be a smart arrangement for such services: Set up shop in a country that leaves you alone as long as you leave them alone (i.e. don't provide services there) but also ignores international inquiries and is small enough not to matter. And if Dubai ever plans to act on international pressure: An empty room is easily moved.
Personally I just use it for my documents and similar folders. It's not intended for full system backups. It's pretty much like Dropbox, but it's end-to-end encrypted so personally I feel better about trusting it with my documents.
Sub-Saharan Africa has of course also suffered greatly from SARS-CoV-2, they just have not the means to count their cases. SARS-CoV-2 does not behave differently in Africa than in other regions of the world, especially not in low-vaccination (or even no-vaccination) countries.
«Rather than an ‹African paradox,› the far simpler explanation is that COVID-19 has affected African countries just as the virus has everywhere else, but has gone undocumented.»
In countries with a younger population, less deaths from acute COVID-19 are expected, although the number of additional direct deaths from COVID-19 is still substantial. The disease burden burden, i.e., morbidity, also remains high, maybe even more given the sub-par health infrastructure.
> Sub-Saharan Africa has of course also suffered greatly from SARS-CoV-2, they just have not the means to count their cases.
Of course they do. If they suffered dramatically from Covid, it would be documented, just as it was for Ebola, Malaria, etc.
> SARS-CoV-2 does not behave differently in Africa than in other regions of the world, especially not in low-vaccination (or even no-vaccination) countries.
The statistics for Covid are all over the map with regards to vaccine status [2].
Some countries with high mRNA distributions did well (Canada, Australia). Some countries with high mRNA distributions did not do well (Brazil, US, Russia, Italy, Cuba). Some countries with low mRNA distribution did well (sub-Saharan Africa, Haiti, DR, Jamaica, Egypt, Papa New Guinea) [1][2].
> In countries with a younger population, less deaths from acute COVID-19 are expected, although the number of additional direct deaths from COVID-19 is still substantial.
A lot of these countries are showing 50-100 excessive deaths per 100K. That's on par with a bad flu season. Sub-saharan Africa has suffered far worse disease outbreaks than Covid. And unlike Covid, diseases like Malaria affect children [3].
In automatic mode, different ppm level should result in higher fan speeds. That is at least the case with my filters. Cooking for example can be a trigger.
You are of course right that automatic mode does not do much. At the same time, higher fan speeds are noticeable (and annoying).
For my environment it never ramps up in that mode at all. Ambient levels are never higher than 10ppm or so.
I know the sensor works because once there was a small bin fire outside. There was no visible smoke indoors, I only noticed a slight smell. But the purifier immediately ramped up and showed over 200ppm.. So it does work.
I'm surprised it's so low as I live at the 2nd floor on a fairly busy street with many diesel buses passing.
