All Questions

Filter by
Sorted by
Tagged with
1
vote
1answer
17 views

Subsistence hunting and fishing in Alaska?

My entire family and I are all planning to move to Alaska in early April, and I'm looking for areas where it is closer to be able to do subsistence hunting and fishing, with land we can buy to build ...
3
votes
1answer
47 views

Can cost be used as a useful measure of a product's sustainability?

What are the gotchas in comparing the prices of similar objects to determine sustainability? Costs to some degree are measures of effort, of resources used, of labour spent. Of the lost opportunities ...
2
votes
1answer
51 views

Hyper carbon accumulator(s) for backyards

I am curious, what people could do with a small piece of land like their home backyard (say originally it is a regular lawn smaller than 20m^2, in temperate continental climate (so pretty harsh)) to ...
4
votes
2answers
343 views

Eco-friendly alternatives to PTFE-based (teflon) pots?

PTFE-based coating seems to be potentially harmful to humans and mortal for birds. PFOA, which is used for making teflon, persists in the environment and our bodies for long periods of time (see ...
7
votes
1answer
36 views

How much CO2 does a plane produce per additional kg of weight?

There are many figures regarding how much CO2 is emitted per passenger and per km. However, I have not been able to find anywhere how much CO2 would an airplane emit if it has to carry an additional ...
2
votes
0answers
39 views

Should a projector be turned off if it won't be used for five to ten minutes?

The conference rooms in my office have projectors mounted on the ceilings, typical of many offices. During the day, several meetings will be scheduled in the rooms, with perhaps five to ten minutes ...
9
votes
7answers
297 views

How can I make my family understand my CO2-emissions-related hesitation to fly in order to spend time with them?

I live in another country, approximately 2000 miles away from my family. Now, my parents have really hard time understanding the kind of personal sacrifices which are necessary to keep the world a ...
3
votes
1answer
48 views

What is the carbon footprint of pet food?

Are there any detailed studies of the carbon footprint of pet food production? There are plenty of articles asserting that meat in cat and dog food is a major source of carbon emissions (e.g. from ...
33
votes
5answers
669 views

Reading on paper vs. screen

I was wondering if there are any numbers comparing the sustainability of reading conventional paper vs. reading on screens. Standard LCD screens emit light while you are reading. Power consumption ...
5
votes
2answers
97 views

How to use a band brake cable with my home built wind turbine?

I recently bought a band brake for a home built wind turbine and was thinking of mounting it on the shaft and getting a cable from the brake to the ground so I can stop the blades in case of ...
5
votes
1answer
97 views

Are trains more sustainable than electric buses?

I assume the energy for electric buses and trains comes from the same sources. But a train doesn't need to carry it's power supply along, contrary to a bus. However, there is more infrastructure that ...
2
votes
2answers
52 views

Can I recycle greasy metal in the US?

In the United States, I know that paper and plastic are often not recyclable if they are greasy. Can I recycle metal that has vegetable grease on it surface? I'm thinking of canisters that once ...
6
votes
2answers
122 views

How do I dispose trash without using plastic bags?

Everyday, we dispose of our trash using plastic bags. This prevents the trash (especially liquids) from leaking out and contaminating our garbage disposal systems. Obviously, things such as paper bags ...
7
votes
1answer
415 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 ...
16
votes
1answer
1k views

Which compostable plastic types can be composted at home?

There often is confusion about compostable plastics (see for example this question on greenware items or this gardening question on plastic bags). 'Compostable' suggests that you can compost the ...
2
votes
1answer
59 views

Which of disposal or production of leather has a greater environmental impact?

Several times I've heard of people supporting leather against non-animal alternatives, saying that since animals are killed for meat we have a lot of skin to use and that it would be bad not to use it....
28
votes
7answers
9k views

Why am I offered a 5 kW inverter with a 6.6 kW solar installation?

I've just received two quotes for installing a rooftop solar system at my residential address (near Sydney, Australia). This caught my eye: Company 1: Panel: 22 x ET panels 300w Inverter: Growatt 5 ...
7
votes
2answers
3k views

Can mesh produce bags be recycled?

Sometimes produce is packaged in mesh bags, such as the bag of oranges shown below. What are these bags made of, and can they be recycled? If they cannot be recycled, can we do something else with ...
3
votes
1answer
75 views

My residential colony burns dry grass every year; how can I stop them?

Every year during June-October, it rains and a few months later after the rainy season there is a lot of grass growing in the empty sites in my residential colony. So all the grass is cut, piled up ...
14
votes
2answers
308 views

Should I replace existing inefficient light bulbs?

Similar to this question (except that's about cars), if I can buy more efficient light bulbs than the ones I'm using right now, should I? Or is it better to wait until my current light bulbs expire, ...
6
votes
1answer
51 views

How do German fossil fuel subsidies compare to PV subsidies?

Over on Politics.SE there's an interesting discussion about "grid parity": "If grid parity has already been reached, why is it so expensive to switch to renewable energy?". The discussion has ...
4
votes
4answers
87 views

Are oil and natural gas inherently linked?

I've heard a lot of people push for natural gas as a fuel for generating electrical power. However, oil is said to be a very dirty fuel. Aren't oil and natural gas harvested from the same sources? The ...
3
votes
4answers
320 views

What is the most commonly available eco-friendly writing instrument?

How would you rank the following in terms of damage to the environment: Pencils (regular) Mechanical Pencils Single-use ball point pens. Refillable ball point pens. Fountain pens The eco-friendly ...
1
vote
2answers
77 views

What are the concrete impacts of not recycling textile?

By 'concrete impacts' I mean hard data for example: CO2e emitted, harm to the ecosystem, resources depleted, cost to the economy, etc. I have a piece of clothing that is broken that I want to get rid ...
6
votes
3answers
129 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 :...
4
votes
1answer
122 views

Can residential rooftop solar arrays be cheaply extended over time?

I am looking to install rooftop solar on my house some time this year. I have a decent amount of roof space and very little shading so I should achieve fairly ideal conditions for it. A lot of the ...
2
votes
1answer
69 views

Is it ok to mix battery brands in a solar battery bank?

I plan on installing 12V 100 Ah LiFePO4 batteries, but since they are so expensive, I might buy from different vendors. The batteries have the same chemistry, voltage, and amperage, but are from ...
4
votes
1answer
313 views

Carbon footprint of CNG vs. Diesel as a vehicle fuel

What is the benefit, in terms of carbon footprint, of replacing a diesel fueled vehicle with an identical one with a CNG engine? I'm not convinced I can simply take the carbon intensities of these ...
11
votes
6answers
1k views

How is Natural Gas more sustainable as fuel than Gasoline?

In California, there are many natural gas vehicle options that are being promoted as more sustainable than regular gasoline vehicles. Natural gas is a by product of the natural processes that create ...
6
votes
1answer
214 views

Is a solar cell phone charger a sustainable choice?

I bought this handy mobile solar charger for my cell phone. I wonder if it's a sustainable buy and looking for a report or similar that compares the production costs (including carbon dioxide ...
-1
votes
0answers
100 views

Led powered solar panels? [duplicate]

I've read multiple threads about this but I've yet to come across an answer to this question.... would it be possible to have a small bank of led lights power multiple solar panels? For instance, if I ...
5
votes
2answers
180 views

How can an individual support mass reforestation?

There's lots of benefits and threats to forest, and given our current, pervasive, and severe ecological challenges, forests are more important than ever. However, it's not obvious what the best ...
17
votes
10answers
29k views

What are the pros and cons of electric motors vs. internal combustion engines?

What are the pros and cons of electric motors, compared to internal combustion engines, from a sustainability perspective? Are electric motors better for the economy, more efficient, or more ...
5
votes
1answer
34 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 ...
3
votes
1answer
41 views

How many grams of CO2 are emitted to produce one paper napkin?

Does using paper napkins have a high carbon impact?
2
votes
0answers
15 views

What are the most common sources of VOC pollution in outdoor air?

I have a personal pollution monitor that has been recording higher levels of VOCs the last 18 hours or so and I'm trying to understand and consider the reasons for this. I live in a fairly busy city (...
7
votes
2answers
204 views

Is cheese as bad as beef for the environment?

Among foods, beef is frequently noted as one of the biggest causes of global warming, particularly because cattle produce methane as part of their digestion. Cheese is less frequently discussed in ...
5
votes
3answers
680 views

If everyone were to be vegetarian, what would be the carrying capacity of the Earth?

I'm not asking what will happen if everyone in the world suddenly turned to vegetarianism. In an ideal world with the current population, can everyone follow a vegetarian diet (except for people who ...
5
votes
2answers
76 views

Are composting toilets better than septic systems?

As a sustainability advocate I've always assumed that composting toilets were "better" than septic systems in almost any application. However I've been reading up a bit on both system types (see ...
6
votes
3answers
429 views

Offsetting with Solar, over what period do you measure the carbon offset

I'm looking to offset the carbon footprint of my wedding. I'd like to do it by helping out some local community solar projects. I've calculated that the weddings footprint will be about 23,000 KG of ...
6
votes
3answers
122 views

How to reduce evaporation of a dam/catchment water source?

My city has a catchment area for water but due to drought conditions it's getting lower and lower in current capacity, and water restrictions have been placed into effect for residents and businesses ...
5
votes
2answers
110 views

Are there any canonical references of the political aspects of sustainable living?

I think that there is a clear and close interplay between politics and sustainable living. What I mean by this is that I think that sustainable ways of living should be reinforced politically to ...
3
votes
0answers
21 views

What is the time basis for offset programs?

I'm kicking around the idea of creating a local offset program. My question is: what is the time basis for offsets? Best seen with an example. Say I build a solar PV system that costs $10,000 and ...
14
votes
1answer
12k views

How to recycle paper with ink on it?

In my work and study, I have a lot of printouts - many of which re drafts and redrafts. Is there are a way to recycle printed paper (standard printer paper) without using harsh chemicals and minimal ...
4
votes
1answer
87 views

What is meant by Global-warming Potential (GWP)?

I was under the impression GWP (global-warming potential) is the measure of a gas' impact on global warming, in comparison with CO2. E.g. methane has a GWP of 86 over 20 years - Wikipedia Comparing ...
2
votes
3answers
73 views

Will there be a role for combined heat and power in an all-electric future?

Beneficial electrification From the National Resources Defense Council “Beneficial electrification,” a new catchphrase in the energy world, refers to the growing recognition that using clean ...
10
votes
3answers
3k views

Is the bag of cat food recyclable?

I am still getting to know the world of recycling and I have come across a minor issue when it comes to learning the difference between recyclable items. I have several cat food bags (OK CAT Health &...
2
votes
2answers
94 views

What are the impacts on CO2 emissions from using cloud software?

I am wondering what are the positive as well as negative impacts on CO2 emissions from using cloud software like Google Sheets, in comparison to traditional software that run locally or on a local ...
5
votes
2answers
49 views

Is global population growth ignored in sustainable energy discussions because it makes any effort seem futile?

We (I'm in EU, Netherlands) are trying to reduce CO2 emissions, and many other regulations (nitrogen, pfas) have been devised to make sure we don't make our planet uninhabitable for humans. But I don'...
4
votes
3answers
63 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 ...

15 30 50 per page