netjiro

18 ms·

151.
by netjiro 7y ago
Becuase of the low density of renewables: https://www.ted.com/talks/david_mackay_a_reality_check_on_re... [edit, better link]: https://www.youtube.com/watch?v=E0W1ZZYIV8o
152.
by netjiro 7y ago
Found some info from late 2018, but paywalled and incomplete, focusing on oil wells. https://news.stanford.edu/2018/08/30/measuring-crude-oils-ca... https://science.sciencemag.org/content&#x2F
153.
by netjiro 7y ago
? Yes, but fossile carbon is out of the carbon cycle, stored underground until we dig it up? This is a fairly fundamental pillar in the discussion around environmental impact of GHG emissions?
154.
by netjiro 7y ago
Absolutely. But I already had the car, and it was later replaced due to old age and not due to distance driven. But the baseline metabolic burn of the 20min car ride should be taken into account, and was, since I was only comparing the extr
155.
by netjiro 7y ago
I think you underestimate the fossile fuel expenditure from agriculture, transportation, wastage, etc. But it is true that if I walk into a forest and eat a wild grown apple, that CO2 is then from and in the normal carbon cycle and not any
156.
by netjiro 7y ago
> perhaps sequester some We need to sequester decades worth of output already, and soon, to avoid truly catastrophic effects within the next 100-200y. Just going neutral will not be enough.
157.
by netjiro 7y ago
> biking (8 g) or walking (0 g) [per mile] This is simply wrong. It doesn't take into account the CO2 footprint of the person doing the biking or walking. Biking is more efficient than walking per km. Since anyone biking, running,
158.
by netjiro 7y ago
Different plants have different behaviours. Some sequester carbon well in the ground, others have near zero long term sequestration value. Some of the best are algae and seaweed that are allowed to sink to the bottom when they die. Plants t
159.
by netjiro 7y ago
Missing a point here. GHG _over_time_ drastically adds more net energy to the earth system than is is used to create or capture them. This because they are opaque to infrared radiation that would otherwise be escaping from the earth system.
160.
by netjiro 7y ago
That is horrible for the ocean. Acidification will be killing off whole ecosystems and lead to drastically lower carbon sequestration by our oceans. As well as other horrible problems for us humans, who are still quite dependent on function
161.
by netjiro 7y ago
Please provide numbers. Numbers are important and should be discussed transparently. Lots of variation in guesstimates, fudging, simplifications, etc cloud the issue and give drastically different "good ways forward". So, please,
162.
by netjiro 7y ago
For me, personally, the extended coastal region is all about the nature access. Without gear I have several months of great water for swimming, diving, sailing, etc. With a thin suit it's six months. Then it's the beautiful forest
163.
by netjiro 7y ago
Scandinavian west coast may-sep (Sognefjord to Kungsbacka). Zürich/Zug/Vaduz oct-apr. Utrecht for the crowd, Tokyo for the food. Want to try: Auckland, Singapore, Vancouver.
164.
by netjiro 8y ago
> Funds which they will use to drive massive amounts of additional R&D to make even better treatments at lower costs. This is a _myth_ Big Pharma is an insanely inefficient structure for turning money into useful R&D results. Big
165.
by netjiro 8y ago
Or, wind -> electricity -> heat pump (1:5) -> lots of heat?
166.
by netjiro 8y ago
Meh. The largest single radiation source in most peoples' everyday environment are probably the ubiquitous H.sapiens ambulating all around them, emitting in excess of 100W per unit at around 12 micron wavelength. The things people are
167.
by netjiro 8y ago
Partially anecdotal: The problem with hiring is from what I've seen not due to ageing population. Instead, due to very protective employment regulation employers in Sweden are absurdly slow and picky when hiring. Resulting in a very la
168.
by netjiro 8y ago
Law (1949:345) "rätten till arbetstagares uppfinningar" It essentially specifies that the employer owns, but must pay a token cost for, "inventions" by an employee outside of his normal employment field and duties. When
169.
by netjiro 8y ago
It's easy to grow fast while borrowing heavily, and that should be taken into account when looking at growth curves for various economic regions. Oil prices have also dropped from around $100 to $60 iirc. 2008-2018: total US debt (gove
170.
by netjiro 8y ago
> The Earth has also been a lot warmer than it is now Key here is rate of change, and what humans can survive. We are changing the climate many many times faster than ever before. Nature does not have the time to adapt. And the wars, fam
171.
by netjiro 8y ago
Hmm. Around 15 years ago the $100M "gotland" submarines sank the $6B carriers multiple times without detection during war games. https://en.wikipedia.org/wiki/Gotland-class_submarine As those kinds of subs ar
172.
by netjiro 8y ago
E.g. you change the other part of the battery. "Air breathing" LiO batteries could reach energy densities in the ballpark of other chemical fuels. I think lab demo cells are around 5MJ/kg nowadays. Traditional chemical fuels
173.
by netjiro 8y ago
Well made point, and I could be wrong. I assume you refer to the automation inroads into accounting, legal, organisation tracking (lower management) etc. I personally see those as specific low hanging fruit since they are highly rule based.
174.
by netjiro 8y ago
The important point to be made is that the "simpler" tasks will be automated early, pushing human required labour to generally be smarter and better educated. There are only so many people for any required value of "smart&quo