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12
votes
2answers
282 views

Where are commercial conditions for a CCS NG or coal plant most likely to emerge in the US?

The first (likely) commercial scale coal ccs plant is scheduled to begin operation at Boundary Dam in Canada by the end of the first quarter of 2014 (Estevan Mercury). A few key points about the ...
6
votes
1answer
46 views

How to measure the embodied energy of a regulation. Is data available?

Is there sufficient data to measure the energy spent managing regulation on both sides (energy spent on compliance, enforcement, permit application processing, and the like)? Are there tools ...
4
votes
2answers
379 views

What was the repowering programme that caused a spike in Danish turbine decommissioning in 2002?

This pdf on Danish Renewable Energy Policy by Preben Maegaard refers on page 11 to A repowering programme that had been launched by the previous government resulted in a short term revitalisation ...
22
votes
2answers
198 views

Do “100% renewable” electricity plans increase renewable electricity production?

In the advertising for this year's earth hour in Sydney, Australia, it encourages people to switch from conventional electricity to renewable energy. A number of electricity providers offer "100% ...
5
votes
3answers
921 views

Alternatives to dry cleaning

A friend recently spilled beer on my dry-clean only flat cap. As I was picking up the cap from the dry-cleaner, it occurred to me I should have looked first for a more environmentally-friendly ...
16
votes
4answers
2k views

What is the most sustainable way to handle food waste…throwing food scraps into garbage or down my sink's garbage disposal?

Every night when I wash dishes, I either throw food scraps down the garbage disposal or throw it in the trash. Is it more sustainable to throw food scraps down the garbage disposal? I think things ...
6
votes
1answer
2k views

What pump should be used for a 5000 gallon aquaponics system?

I am installing a new aquaponics system. It will have 2 650 gallon fish tanks, 1 1500 gallon sump, 1500 gallons of flood and drain grow beds, and 3000 gallons of DWC beds. The fish tank and sump ...
40
votes
8answers
30k views

How effective is turning a car's engine off while standing at a traffic light?

I know some countries enforce having cars automatically shut down the engine when stopping at a traffic light. How much resources are really saved by this process? Does the car need to be ...
8
votes
1answer
476 views

Can wood wool be produced from plywood waste?

For packaging of parcels, is it feasible/ possible to produce wood wool from the waste of plywood products? If not, what alternative packaging uses are there for plywood waste?
11
votes
1answer
3k views

Trickle-charging batteries for outdoor usage/ wind turbine suggestions

I have a Shimano Hub Dynamo wheel from an old bike, I intend on turning into a small wind-turbine, probably starting off like this but being modded further when I have the time. My modest aim is to ...
21
votes
4answers
146k views

Leaving the oven door open for heat - bad idea?

I've heard before that it's a bad idea to use an oven to heat your house, because it's inefficient and carries the risk of carbon monoxide poisoning. But what about leaving the oven door open after I'...
13
votes
5answers
613 views

(Non-compost) uses for egg-shells?

Like many families, we eat eggs and this produces egg shells. While I am aware that composting is a possibility I am wondering if there are other things we can do with them. We are not raising ...
10
votes
9answers
14k views

What sustainable packaging can be used for meat in the freezer?

When my family purchases meat from the supermarket, it comes on a non-recyclable plastic foam tray with plastic cling wrap over the top. We can improve on this by purchasing meat elsewhere. However, ...
7
votes
1answer
891 views

How can you grow Hops (for beer) in an aquaponics system?

A buddy of mine is interested in attempting to grow Hops in an aquaponic system. He is particularly interested in something of the deep water culture style of system. Is this possible with Hops? If ...
11
votes
4answers
119 views

How can I find information on Ecovillages?

Ecovillages are intentional communities with the goal of becoming more socially, economically and ecologically sustainable. Some aim for a population of 50–150 individuals. Larger ecovillages of ...
15
votes
1answer
261 views

What is BioChar and can I use it to improve my garden?

A 2010 NYT article using BioChar to sequester carbon and improve soil quality. What is BioChar? Is it possible to use it in a small scale to improve my garden? How do I figure out the best amount to ...
16
votes
6answers
71k views

Are there any bright candelabra base LED bulbs equivalent to a 60-75 Watt incandescent?

My fan takes 3 candelabra (E12) base bulbs; I traditionally use incandescent flame tips, but since they're behind frosted glass, I don't really care. Having just replaced my dimm-able recessed ...
15
votes
2answers
659 views

Ants and Compost

My community compost pile is now home to a very active ant's nest. As soon as any food goes on the pile, the ants are swarming over it. Is it anything to worry about, or are the ants a healthy ...
8
votes
3answers
152 views

Most sustainable way to freshen air?

Looking for some alternatives for air fresheners. I have been looking at various alternatives such as coffee grounds (possibly in a muslin bag), and the like. What works here? I would rather get ...
14
votes
5answers
801 views

What are freely available tools or databases for Lifecycle Assesment?

Often, a Lifecycle Assessment (LCA) can be useful to judge the ecological and social impact of a product or procedure. What tools to produce an LCA are freely available? Especially of interest would ...
23
votes
4answers
7k views

How to recover water from washing machine for toilet

In the last years I have been very concerned about the incredible waste of water from washing machine that could be easily used for toilet use, but up to now I have not found an easy way apart from ...
7
votes
1answer
61 views

What are the challenges in mixing food production with living spaces?

Some of the other questions have discussed the differences between localization and sustainability, for example, What is the Relationship between Localising the Economy and Sustainability? A lot of ...
10
votes
2answers
2k views

Can you vermicompost biodegradable plastics?

I'm looking for a way to recycle biodegradable plastics myself and I was thinking about putting them in my wormery. Does anyone have experience with vermicomposting biodegradable plastics? Is it safe ...
18
votes
3answers
2k views

How to choose the most sustainable battery for small portable devices?

There are lots of different battery types available, and different brands. I remember back in the 80's I think the first batteries came out that didn't contain mercury. Now, I have no idea how likely ...
35
votes
3answers
3k views

Are electric cars as environmentally friendly as we think they are?

Given the fact that the average lifetime for a car battery is 3 years and all of the batteries end up at a landfill at the end of their lifetime, how sustainable are electric cars in providing a ...
11
votes
3answers
233 views

When do you know you're generating too much waste?

I (a single person, me, myself) fill and dispose a 30 liter bin every couple of days, and I feel uncomfortable with it, but I don't have a benchmark. What I want to know is considered normal waste ...
15
votes
2answers
301 views

Is drip irrigation more water-efficient than conventional watering?

I have set-up a rooftop garden at home. I am too lazy to water it every day so I am planning to set up a drip irrigation system. But the question remains: is drip irrigation more water-efficient than ...
5
votes
1answer
2k views

What is an efficient Atmospheric Water Generator?

I would like to build or purchase an Atmospheric Water Generator, using as simple and energy efficient technology. There seems to be various models available out there. Could you help cataloging the ...
8
votes
1answer
71 views

Natural cleaner for oak floor

I have oak wood floors that need significant cleaning. I don't know what specifically is on them, but they're very sticky to walk on. What's a good natural cleaner to cut the build up and not harm ...
8
votes
3answers
2k views

What is the relationship between permaculture and sustainability?

What is the relationship between permaculture and sustainability? What are sound reasons why both urban and rural permaculture takes us further down the road to sustainability? Are there real-world ...
18
votes
5answers
2k views

Large-scale reuse of glass bottles

Reading some comments on the question comparing various materials from which bottles are made, the thought arose: indeed, what prevents large scale collection and reuse of glass tare? When I was ...
10
votes
1answer
86 views

Recycling items from another country

When I travel to Japan, I occasionally bring back a few items with me (not an awful lot), and they have recyclable containers. Most commonly, I have items categorized as plastic: (Image from http://...
11
votes
3answers
380 views

What is the Relationship between Localising the Economy and Sustainability?

Following up on EnergyNumbers' questions: What is the relationship between localizing the economy and sustainability? Does pushing for local food markets, local production of goods for use, local ...
8
votes
1answer
142 views

What are the sustainable options for cooking applicances?

What are the most sustainable options for cooking "appliances." Obviously any appliance or cooking device that utilizes petroleum-based gas to fuel their heat source is going to be unsustainable. ...
6
votes
2answers
93 views

Alternatives to disposable propane (and other gasses) bottles

Gasses for household applications (propane, butane etc.) often come in small disposable containers, such as metal bottles or cans. I know that it is possible to refill some of them, such as one-pound ...
-2
votes
1answer
229 views

Relative environmental impact of various portable gasses [closed]

I am interested in implications of using various gasses that are commonly packaged in small containers for household use, such as propane, butane and so forth. It is mostly for awareness purposes, and ...
13
votes
2answers
127 views

Should I raise my own animals, or support a local farm?

This winter we raised two hogs. We don't have too much land, and don't grow the grains that would be required for fully feeding them from products grown on our hobby farm. My question is whether it ...
15
votes
2answers
3k views

Propane vs. Electric vs. Heat Pump

Is there a relatively reliable way to figure out what energy source to go with when upgrading appliances? We need a new hot water heater, for starters. Our current one is propane. Options include ...
12
votes
4answers
2k views

Mulching or “Mini Septic” for Solid Dog Waste?

(I asked this on gardening.se but it was suggested I try asking it here. Hope this is an appropriate place to ask...) I'm a relatively new dog owner. Living in a relatively woodsy area with an acre ...
4
votes
1answer
107 views

Are broiler chickens raised in “chicken tractors” less likely to get hock burn?

There is a discussion on the James Oliver site asking if a free-range bird can have hock burns. There are statements that a free-range chicken could develop hock burn due to exposure to mud. A ...
12
votes
3answers
158 views

Reusing buckets for flower pots?

Is reusing old food buckets as flower pots actually a good sustainability practice or a bad one since I'm ruining good buckets by poking holes in the bottoms? I get the buckets for free from my ...
7
votes
1answer
144 views

How “clean” is this Ohio State clean coal technology?

Much is being made of the clean coal breakthrough announced at Ohio State this week. The effort utilizes an innovative process called "chemical looping." Typical coal-fired power plants burn coal ...
7
votes
4answers
125 views

Buying used or self-assembly furnitures when expecting to move frequently

Given the following conditions: One expects to have to move multiple times One would like to keep the furniture Is it possible to make a generalization as to which is more sustainable: Buying used ...
7
votes
1answer
481 views

Are there any laws that prohibit composting of human waste in US cities?

I have lived in an urban setting for a couple of years, where I used a composting toilet. Now I live in an apartment in a major metropolitan area in California and would like to continue using ...
7
votes
2answers
153 views

How should I manage a worm bin that is inside a kitchen?

How should I manage my worm bin so I can keep it inside the house in my kitchen? How do I prevent odor? How do I prevent fruit fly infestations? Another question deals with how to get rid of an ...
11
votes
5answers
2k views

How to get rid of fruit fly infestation in worm composting bin?

My worm composting bin is infested with fruit flies. What can be done to get rid of the flies?
2
votes
1answer
61 views

What are limits of root zone wastewater treatment?

Root zones are better than industrial wastewater treatment in many ways - sustainability is the biggest one, but the price is favorable too. On the other hand, I've heard that root zones are ...
18
votes
3answers
8k views

Storing food without refrigerator during the winter

I am unplugging my refrigerator for the winter months, I live in the northern United States so the temperature is sub freezing most of the time during winter. I have a semi-insulated garage that is ...
12
votes
2answers
101 views

When to buy new, when to keep the old?

How can I calculate if it makes sense from a resource-conservation perspective to purchase a new, more energy efficient appliance, and when it makes sense to use an old appliance until it is beyond ...
8
votes
2answers
1k views

Cooking with gas or electricity

Is it better for the environment to cook with gas or with electricity, assuming the electricity does not exclusively come from renewable sources? I am interested in a comparison for each of the ...

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