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69 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
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0answers
740 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
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1answer
68 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 ...
2
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1answer
54 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 ...
1
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0answers
26 views

What is the prevalence of mutagenic crops in conventional and organic farming?

I am curious to know what the prevalence of crops produced via mutagenic breeding is? Mutagenic breeding involves bombarding seeds with ionizing radiation (like X-Rays and gamma rays) to causing its ...
1
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0answers
35 views

Solar setup for well pump

The electricity where I live is pretty expensive at about almost 30 cents a KWh, so I'm considering setting up a solar system. I got 3 100 Watt Polycrystalline solar panels a while ago, pretty cheap. ...
1
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0answers
43 views

What are the benefits or shortcomings of a moss wall?

I'm considering to put up a small moss wall in my workplace. What benefits or shortcomings should be considered regarding inhabitants' health and environment impact of a moss wall? Update: It's an ...
1
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0answers
33 views

Must I install bypass diodes across my solar panels?

I have an array consisting of ten solar panels wired in series as shown in the figure below: My problem is that during some winter months (Oct - Dec maybe), in the afternoon, the sun is so low that ...
1
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0answers
30 views

Examples of a city or region with poor economy and environmental pollution that turned to green economy and prospered

I am looking for some examples of cities or regions that initially suffered from poor economy, unemployment, pollution or any environmental problems, but they turned to green technology and ...
1
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0answers
22 views

Solar Install Flat Roof

I want to install 23 305w panels on my roof. It's a flat roof constructed with 2x8 beams spaced at 24". There is no snow load to consider and we get occasional wind and rain storms a few times per ...
1
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0answers
59 views

Uses for Sycamore tree bark?

I live near a number of parks which have very large Sycamore trees. In winter these trees naturally shed their bark. The bark tends to pile up at the bottom of the tree until, I assume, the park ...
1
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0answers
40 views

Innovative design solutions to increase recycling rates among university students

I have an assignment to research innovate design solutions to increase recycling rates, in particular recycling rates among university students. I've found an excellent research report on topic (but ...
1
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0answers
280 views

Is it correct in thinking that Constant (Continuous) Flow is NOT the same as Constant Flood?

So the long debated question of which system is better has already been argued and fought for a while now. This isn't that. See the end of this post for the direct question. In trying to determine ...
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0answers
12 views

Is there a plastic that’s sustainable because it’s made from recycled plastics?

I’ve worked in engineering before, so I’m wondering if there is a plastic that can be recycled and reused for say the purpose of injection moulded part? Thanks for your answers
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0answers
16 views

Are there design agencies that help companies make sustainable hard products?

I am keen on making a list of agencies on sustainability - most I find are ones advising on policies, climate change, services and communications. What about design houses that help companies make ...
0
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0answers
45 views

How to sell shredded plastic in the UK?

I would like to purchase a shredding machine in order to shred plastic myself, I was wondering if there were any standards I'd need to watch out for and where I could find businesses willing to ...
0
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0answers
43 views

Can goats eat Australian pine ( Casuarina Equisetifolia )?

I have a lot oF Australian pine growing in my backyard and was wondering if it’s okay for goats to browse on the needles and pine cones?
0
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0answers
55 views

When laying wood chips is it better to put down cardboard on top of grass, or just leave it as is?

I'm going to be putting down about 2,000 yards of wood chips on a garden (to kill off all the plants there) in an area on the edge of a swamp this year, and am wondering if it would be just as ...
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0answers
64 views

Shortcut carbon emission trading by buying and sinking coal

Carbon emission trading is supposed to use market mechanisms to make carbon-intense processes less attractive. Unfortunately, the EU market is flooded with emission certificates, such that the ...
0
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1answer
65 views

Is there any case where plant farming is more eco friendly than raising livestock?

I am looking for an example or a case with arguments that would justify converting cattle ranches into plant farms (e.g., wheat, apple, or anything non-meat). The advantages should be in a more ...
-1
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0answers
25 views

Close curtains and turn on the light vs. Open curtains (when AC is turned on)

Say that during daytime I turn on the air conditioner (AC) and need light in my room. I have these two possible options: Turn on the light and close the curtains (but AC has to work harder due to sun ...
-1
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1answer
330 views

How much money to live “off-grid”?

How much money would you need to live off grid in a wooden hut in Alaska or somewhere else remote on Earth? Let's presume we do this at 30 years old and live to 100. Only costs I can think of are ...
-1
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2answers
134 views

Will Koolatron cooler cool warm stuff?

We don't have any electricity, so we're thinking of purchasing this Koolatron cooler. Most of the drinks I put in it (refreshment cans, water bottles, etc) will be warm/room-temperature. Will it ...

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