Y
HN Search
Hacker News Search
new
|
comments
|
top
|
jobs
strainer
searching PlanetScale…
1.
▲
2.
▲
3.
▲
4.
▲
5.
▲
6.
▲
27 ms
·
211.
▲
by
strainer
7y ago
It was too broad an assurance to base on quick chemical assessment. We have different kinds of plastics situated in many different environments. Regarding the sugar example and microbes primary need for water, from the article - "In 20
212.
▲
by
strainer
7y ago
I get they can - on rare occasion. I'm indignant about the stretch of language, presenting "can" and "sometimes" as "will" and "do", and the way this was tacked onto placenta eating to help say t
213.
▲
by
strainer
7y ago
That's nonsense. Herbivores will not "eat any food thats more calorically..." they eat what they have specialised to eat. Some even just eat one species of plant. Where do you find cows that hunt chickens and mice or chickens
214.
▲
by
strainer
7y ago
Cows don't "already eat parts of cows" except in that most tenuous sense you made out of self reabsorbtion of placenta, which is common to mammals. Do I "eat parts of people" if I chew on my nails? In the same tenuo
215.
▲
One of the longest-running biodiversity experiments in Europe
(the-jena-experiment.de)
2 points
by
strainer
7y ago
|
0 comments
216.
▲
by
strainer
7y ago
Renewables meet the traditional concept of base load while generation is sufficient. This can be the situation often, or just occasionally depending on how many wind and solar facilities are present. Renewable oversupply can already be ec
217.
▲
by
strainer
7y ago
Sooner or later it is likely that microbes which can digest plastics but are currently extremely rare, will multiply, become common and evolve since we are making plastic pollution increasingly common throughout soils and seas. What will be
218.
▲
by
strainer
7y ago
Apologies for being pedantic but the link contains no mention of magnetic field information and Neptune's discovery would not have taken this into account either. Im fairly sure this has been done so far by analysing orbits in differen
219.
▲
by
strainer
7y ago
But junk is perjorative word which suggests that it is entirely disposable even desirable to remove. That may turn out to be true but the experiment required to prove that thesis would require closely observing a biological systems evolutio
220.
▲
by
strainer
7y ago
The systemic solution is to continue and increase development and build of wind and solar which will continue almost without limit onto the oceans, assisted by autonomous equipment.. and build fuel synthesis and electric storage. Energy wil
221.
▲
by
strainer
7y ago
Drawdown seems very interesting overall, but their ranked list is confusing with the top 'solution' being about refrigerants, which amount to no more than a couple of percent gross CO2e emissions. Thats not what most people would
222.
▲
by
strainer
7y ago
Here is the IPCCs detail of ghg gas emissions [1] The gross global warming effect of pollutants that you are mentioning is low compared to CO2. Methane emissions amount to around 16% of CO2(e) emissions, and NOx emissions amount to around
223.
▲
by
strainer
7y ago
They are ranked a bit confusingly by the metric of 'potential future impact' divided by 'cost'. Refrigerants could have a huge impact if they are not controlled and/or improved, but they need not be very costly to c
224.
▲
by
strainer
7y ago
This is not only javascripts behavior, it is the IEEE standard for floating-point arithmetic which most modern hardware and software strictly adheres to.
225.
▲
by
strainer
7y ago
The UK has been alarmed by the "New Zealand flatworm" threatening its earthworm population - some places have lost all of their worms, though it seems to be under control. On the other hand at a push, it may be possible to deliber
226.
▲
by
strainer
7y ago
If you believe the calculation to be incorrect you owe it to yourself to identify the error. It should take much less time for you to do that than it took me to compile and reference the calculation for _you_. The IPCC has compiled known op
227.
▲
by
strainer
7y ago
I think we may find such schemes happen as we miss our CO2 targets and may need to urgently limit global temperature rise. A controllable sun shade in space would be my preference over consigning regions of earth to heat dumping grounds. Bu
228.
▲
by
strainer
7y ago
That sounds cool (sorry couldn't resist) but very much a long shot as the wikipedia article itself notes : "None of these efforts has yet tested its device with hydrogen–boron fuel, so the anticipated performance is based on extra
229.
▲
by
strainer
7y ago
Wind and solar do not require cooling or have problematic thermal emissions. It is possible for solar to have a slightly lower (or higher) albedo than ground it is situated, and possible for wind to cause some local heating from air mixing
230.
▲
by
strainer
7y ago
> Heat pollution is a very minor concern. WOHA was a cursory and self acknowledged "back of the envelope" style reference, it is also now outdated. Heat pollution is often not a minor concern locally, see introductions such as
231.
▲
by
strainer
7y ago
Afaik the arizona plant doesnt use sewage but grey water, from drains and canals and such. Large amounts of it, and it gets straight up evaporated. Grey water should ideally be remediated and used for irrigation, not just evaporated - not i
232.
▲
by
strainer
7y ago
The "near limitless energy" claim of articles like these is very deceptive. The true destination is perpetual heat generation, which is low grade energy and a potential pollutant on this planet. The only thing we can do with suc
233.
▲
by
strainer
7y ago
Its actually very complicated matter to count [1]. But if you look into winds "carbon footprint" you should find it is widely regarded as having one of the lowest overall emissions, about 1-2% of natural gas generations footprint.
234.
▲
by
strainer
7y ago
To establish that the organism would have to be observed for some time to rule out exceptional responses/relationships to other microbial communities, and materials. Life is problematically complicated and confounding over time, it doe
235.
▲
by
strainer
7y ago
Sure shipping diesel is bad, but have you made that calculation? Where does the idea come from? You believe the IPCC ignore/hide transportation and other factors from the EROI calculcations to the degree they are essentially fictitious
236.
▲
by
strainer
7y ago
That's internal passive cooling which they mention briefly in their faq (transferal of heat from their reactor to their output loop). These units take in water and output steam, and they need attached to thermo-electric plant to produc
237.
▲
by
strainer
7y ago
> building renewable generation will produce more GHG's than you are going to "stop producing". Manufacturing isn't a clean process Production of renewables certainly does not produce more GHGs than are saved. You mus
238.
▲
by
strainer
7y ago
Build renewable generation to stop releasing GHGs - this technology is affordable, ready and is likely in the medium term to be alot cheaper than running the old plants. Its no where near necessary to "cover this planet with solar pane
239.
▲
by
strainer
7y ago
SMRs likewise require generators and cooling plant, 2 or 3 times as much cooling as electricity produced, perhaps even more if its to be done most economically. So if CHP is justification for such release of heat into cool environments - th
240.
▲
by
strainer
7y ago
Waste heat cant simply be used for this and that, or else we would see all existing thermo-electric powerplants already doing so. Efforts to make thermo-electric plant more efficient and use waste heat are ongoing, but full use of waste he
More ›