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9
votes
2answers
322 views

Is there a sustainable agriculture certification that sees GMOs as potentially beneficial?

I keep dreaming of a certification body that has stringent and ever-evolving standards for a sustainable agriculture that looks after the environment and humans, with a rigorous but open mind when it ...
7
votes
0answers
91 views

Is cheese as bad as beef for the environment?

The contribution of beef production to global warming is frequently noted as one of the worst foods, particularly because they produce methane as part of their digestion. Cheese is less frequently ...
6
votes
0answers
97 views

Are machine-washed rags more sustainable than paper towels for any & all household messes?

Anything single-use is suspicious in terms of sustainability, especially if it goes to the trash afterwards and is not recyclable. Considering that, and the disproportionate use of paper towels by the ...
6
votes
0answers
39 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
100 views

Are any large restaurant chains pursuing better alternatives to recyclable packaging?

Yesterday Kraft Foods announced that by 2025 all of its packaging will be recyclable. (Note that while they include "reusable" and "compostable" in the announcement, they talk almost exclusively about ...
6
votes
1answer
267 views

Is a sump tank necessary for my proposed aquaponics system?

I am designing an aquaponics system for my basement. I am thinking about one large fish tank approximately 3500 gallons. The grow beds will be above the fish tank and consist of twelve 45 gallon ...
6
votes
0answers
368 views

Bamboo fibre clothing (not rayon)

Are there any retailers selling clothes made out of naturally processed bamboo fibre, not the viscose/rayon (see here) method? I am talking of the alternative proposed in this answer: Apparently ...
5
votes
0answers
26 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
133 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
0answers
106 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? To give a perspective on Degrowth, Degrowth is a political, economic, and social movement ...
5
votes
2answers
582 views

If everyone is vegetarian, what is the carrying capacity of the Earth?

I'm not asking what will happen if everyone in the world suddenly turned to vegetarian. In an ideal world with current population, can everyone follow a vegetarian diet (except for people who may need ...
4
votes
0answers
74 views

How bad are incense sticks for environment?

Belonging to a country where incense sticks are used extensively, I wonder how bad are they, althought it is said they are good for air. But at moment, it seems highly misleading to me.
4
votes
1answer
110 views

Nike water bottle breakdown?

So many know that single use plastic water bottles break down with repeated use. Well the other day, I decided to buy a reusable water bottle. I am on a budget and picked up a Nike Hyperfuel 32oz. Its ...
4
votes
0answers
58 views

Which is more sustainable for eyewear/spectacles : Glass lenses or Fiber-plastic lenses?

I am about to get my first pair of spectacles. From where I am, glass lenses need a frame. Fiber-plastic lenses can be frameless. It's well known Fiber lenses are much more durable and longlasting. ...
4
votes
0answers
95 views

Should cardboard contaminated with unknown dirt be recycled?

Lately, postal cardboard packages have been arriving with an increasing level of exterior contamination with generic black dirt. Although the composition of this dirt is unknown, this can be a concern ...
4
votes
1answer
84 views

Is there a recent study that shows how accurate wind turbine wake models are?

Wind-turbine wake models are used in the design of wind farms, to optimise the choice of turbine model, and the layout of the turbines. They're also sometimes used in the operation of wind farms, to ...
4
votes
0answers
60 views

Any sustainability difference between anionic/cationic/nonionic detergents?

Are any of these three types of detergents more or less damaging to manufacture and/or use or dispose of than the others? I realise these are rather broad classes, but this is usually the only detail ...
4
votes
0answers
43 views

Pond for largemouth bass / perch

In NE Ohio (Zone 5 - 6) how large of a pond would I need to raise largemouth bass or perch for food production. What is the minimal depth and diameter required for 100 fish?
4
votes
1answer
72 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
37 views

Large-scale test data on LED, CFL, and incandescent brightness and longevity

A google search for "comparing LED, CFL, and, incandescent brightness" returns hundreds of charts showing what equivalent wattage of LEDs and CFLs are to match an incandescent bulb. This is fine for ...
3
votes
0answers
18 views

Air source heat pumps: does prevailing wind matter?

Part of an air source heat pump is a fan to circulate air over the refrigerant circuit. Is it less efficient (and by how much) to point this fan into the prevailing wind? Or does it not matter (i.e. ...
3
votes
1answer
36 views

What's the carbon footprint of watching IPTV?

There are some topics discussing the carbon footprint of an email: What’s the carbon footprint of an email? https://twosidesna.org/US/The-Carbon-Footprint-of-Email-is-quite-large/ However, I found ...
3
votes
0answers
32 views

Plane and train greenhouse emissions - comparison taking infrastructure in account or not?

In the news or various other places, we see often that train travel produces significantly less greenhouse gas than air travel, without much information about how this is calculated. For example here :...
3
votes
0answers
42 views

Is Tawashi really suitable for dishwashing?

As a step to reduce my waste I planned to make a tawashi to replace artificial dishwashing sponges. I had a t-shirt not suitable to be donated, waiting to be upcycled, so I made t-shirt yarn out of it ...
3
votes
1answer
54 views

Distinguishing between polyethylene and polypropylene plastic food packaging for recycling

I want to recycle as much food packaging plastic films as possible (I'm willing to clean and dry them). As far as I know, food packaging films are only made from 3 types of plastic: polyethylene (PE), ...
3
votes
0answers
44 views

Is burning PVC with municipal waste 'acceptable' nowadays?

I started to write a comment under the question Is there an efficient way to dispose of credit cards? about the dangers of burning PVC, because this can lead to dangerous chlorine compounds in the ...
3
votes
2answers
94 views

Is there any useful recycling of fibreglass boats or other products made of it?

Lifetime is running out for a large number of fibreglass boats produced about 50 years ago. Many shipyards where they have been produced do no longer exist and last users frequently do not have the ...
3
votes
0answers
58 views

How to manage a largish hugelkultur?

As part of the site clearance for the in-fill house I'm building at the rear of the section I have had to remove a 100 year plus old pine ( which the neighbour wanted to remove as he felt it was ...
3
votes
0answers
58 views

Are there any articles that describe to correlation between the forecast errors for renewable energy resources, depending on the distance?

In an article by Zhang et al., the authors describe how the (normalized) forecast errors of different renewable energy sources (like solar panels and wind mills) are correlated. To that end, they ...
3
votes
0answers
73 views

Environmental benefit of recycling small cables from electronics and holiday mini lights?

For electronics, I've watched some online videos explaining commercial shredding operations and some home based scrapper videos showing how they strip insulation from common household electrical ...
3
votes
0answers
485 views

Ammoniacal Nitrogen (NH3-N) test and sources of ammonia in natural bodies of water

One parameter that's involved in water quality assessment is ammoniacal nitrogen (NH3-N), a measure of ammonia. Where does ammonia come from in natural water sources, such as a river? What factor ...
3
votes
0answers
86 views

Are talcum powder tins more sustainable than the ones that come in plastic boxes?

I was shopping and as a trial, I bought a talcum powder in a tin container instead of the usual ones that comes packaged in a plastic box. The material looks like a tin, although one cannot tell from ...
3
votes
0answers
117 views

Which type of portable heaters are best suited to use in a static caravan?

I am looking for 2 portable heaters to use in a static caravan. One to go in the children's bedroom (safe to leave on at night), the other to go in the living room. Which types of heaters would be ...
3
votes
0answers
65 views

Relationship between number of public rubbish bins and MSW(municipal Solid Waste) among countries and areas

Is there any research really about the relationship between the number of public rubbish bins and MSW? Any studies about it? Do municipalities with less public rubbish bins tend to produce less MSW? ...
3
votes
1answer
85 views

Is boxed wine more ecofriendly than bottled wine?

In a few weeks I'll be hosting an event and will need to purchase wine for about 30 or 40 people. For myself and my partner, I typically purchase boxed wine as it stays fresh longer (assuming the wine ...
2
votes
1answer
44 views

How can I recycle safety razor blades?

I recently switched to a safety razor because It's cheaper in the long run, even if I change blades more often disposables are a recycling nightmare - (metal bonded to plastic) Of course eventually ...
2
votes
1answer
74 views

CO2 track of staying in huts which are supplied by helicopter

How much CO2 do we produce by sleeping on average in a hut (including breakfast and dinner)in high-altitude > 3000 m)? Let's assume that the hut offers 50 beds and that a helicopter has to supply the ...
2
votes
0answers
20 views

How to reduce energy usage of a window air conditioner?

In the summer, we use a window air conditioner in our bedroom to be able to sleep comfortably at night. It takes a while to cool, and I know it uses quite a bit of energy. Here are a few steps we take ...
2
votes
0answers
33 views

How to make extracts and fragrances from fragrant plants like Sage

I'm looking to try using more natural products/solutions in our day to day life and some things that I am considering are fragrances, soaps and essences (food). I have read that Sage plants are edible ...
2
votes
0answers
38 views

Is an air to water heat pump appropriate to keep a hot tub at temperature throughout the year (hot tub to run 24/7)

Is an air to water heat pump appropriate to keep a hot tub at temperature throughout the year (hot tub to run 24/7). Presumably if the efficiency is greater than 1 even at the lowest temperatures (say ...
2
votes
0answers
29 views

What are the root and aboveground dimensions of a cotton plant at its largest?

I'm experimenting with optimal cotton growing techniques using the least amount of water required and plan on growing a cotton plant in simulated field conditions. That said, I need a large enough ...
2
votes
0answers
39 views

Does a solar thermal hot water system make sense for my home?

Currently my house has a natural gas-burning hot water heater, with a 40 gallon (150 liter) tank. Given the vintage, the efficiency of this heater is likely around 80%. A new, drop-in replacement ...
2
votes
0answers
53 views

Is there a “break even point” or life cycle analysis directory or calculator that's kept up to date?

I've seen plenty of one-time calculations dedicated to one specific thing (usually plastic vs metal straws, or reusable vs disposable cups) but don't know of any organizations or even blogs that ...
2
votes
0answers
69 views

What is the environmental impact of recycling beverage containers, by material?

I just read the article "Oregon Launches First Statewide Refillable Bottle System In U.S.". Discussing the environmental impact of this system, the article says: Until that facility [in Portland, ...
2
votes
0answers
112 views

Lead nano carbon batteries over Lithium?

The person quoting me on an off grid solution is suggesting lead nano carbon batteries instead of Lithium Ion or ordinary lead acid. Is this technology mature enough yet? And is this now the way to ...
2
votes
0answers
76 views

What is the average net impact of a human on the sustainability of our habitat?

I've been writing an informal essay on the true cost of everything and as per the question asked at the end, I want to approximate the average human's impact on habitat destruction/human ...
2
votes
0answers
87 views

What's required for hydroponic farming in a container?

I have a container of size L 1.8 m × W 1.86 × H 1.73. I am planning to turn this into a hydroponic container for growing cooking greens (salad etc.). The thing that concerns me is the stuff I probably ...
2
votes
0answers
68 views

What is the Index of Sustainable Economic Welfare (ISEW)?

What is the Index of Sustainable Economic Welfare (ISEW) about? Does it measure the relation between energy and well being? Or does it have other parameters?
2
votes
0answers
713 views

How do trees absorb carbon dioxide?

How much of carbon dioxide is used in the first years of the tree, and how much in maturity? How much goes in the soil, and how much in the wood? What about the night? I live in northern Italy, and a ...
2
votes
1answer
52 views

Are Eco-Schools more effective teaching children about sustainability?

Is there any evidence that Eco-Schools are better at building sustainability awareness for school kids and teaching them about renewable energy technologies? Or is there a better approach that might ...

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