Unanswered Questions

95 questions with no upvoted or accepted answers
7
votes
1answer
217 views

After how many litres does Soda Stream get more sustainable than bottled sparkling water

Soda Stream is advertised as a more sustainable alternative to buying sparkling water in bottles. The main selling points are that no water filled bottles need to be manufactured, transported and ...
6
votes
0answers
50 views

Freezing Ice Pops Sustainably

When storing ice pops for retail customers, I need to package them in a freezer-safe ,clear wrapping. I would like for it to be compostable, but apparently the compostable cellophane options are not ...
6
votes
0answers
155 views

What is the Degrowth perspective on ad blocking and online advertising?

From a Degrowth perspective, how would one argue in favour or against ad blocking and online advertising? Degrowth is a political, economic, and social movement based on ecological economics, anti-...
6
votes
2answers
89 views

What is the effect of hot weather on the performance of electric vehicles?

Allied to the question: How does cold weather affect electric vehicles? How does hot weather affect electric vehicles, particularly when the atmospheric temperature is above 30 C and closer to 40 C,...
5
votes
2answers
163 views

Do SSDs have a lower environmental impact compared to HDDs?

In this question on Super User they say that Solid-State Drives (SSDs) use much less power than traditional Hard Disk Drives (HDDs). I read some internet posts and research articles that backup this ...
5
votes
0answers
23 views

Is thermal heating of soil contaminated by coal gasification plant safe in a built-up zone?

Where I stay, theres a site (see intro here) nearby that used to be a coal gasification plant (produces coal gas for lightning etc.). The plant contaminated the soil with PAHs and heavy metals with ...
5
votes
1answer
377 views

How can I figure out what's using so much electricity in my home?

I recently moved into a new home with 2 other housemates (joining 1 who already lived there) and our combined bill for electricity is far higher than I expected. Now we're using just over 40 kWh per ...
5
votes
1answer
91 views

Biomass: Digestor/Reactor vs Gasifier Efficiency

When using biomass for energy, two popular options are reactors and gasifiers. The first uses anaerobic micro organisms to convert the biomass to fertilizer and a methane rich gas mixture. The second ...
5
votes
0answers
30 views

Which part of the process of estimating wind resource has the potential greatest benefit from further research?

Estimations of the potential generation resource of wind power happens at all scales from very coarse global estimates, to detailed estimates at individual sites based on specific locations and ...
5
votes
0answers
171 views

What are the advantages and disadvantages of using lidars over sodars for wind resource assessment?

The process of wind resource assessment has used a variety of methods over the years; more recently, lidar - radar-style sensing using lasers; and sodar (similar, but using sound) have come to ...
5
votes
1answer
121 views

What's the environmental impact of industrial sources of store-bought bagged soil? Is it a 'net positive' in terms of building soil & storing carbon?

To help grow lots of trees and ecologically friendly gardens, I've bought lots of bags of soil over time. There are better, more local sources of soil/mulch/compost, but nevertheless I go the route of ...
4
votes
1answer
40 views

What is the recommended way to dispose of a used water filter?

I have just replaced water filters for the water filtration system recently. There are a total 5 filters. 1 of them is ceramic, the other 4 are made of other materials which could probably be opened ...
4
votes
0answers
48 views

Which dishwasher program is best to conserve the plates?

I was arguing with my wife over which dishwasher program to use. I want to use the eco program because it is most environmentally friendly, but she countered that the long program (3:30h) puts more ...
4
votes
0answers
26 views

Why is the usage factor for utility-scale storage declining in the U.S.?

This chart from the U.S. Energy Information Agency was published last week in the article "EIA expands data on capacity and usage of power plants, electricity storage systems": The text of the ...
4
votes
0answers
64 views

How much CO2 is currently captured in the EU per year with CCS technologies?

I wonder how much carbon dioxide is captured per annum in the EU at the moment. In this article (p. 5), one can read that the two largest CCS facilities in Europe currently capture around 1,55 Mt/y. ...

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