Community Digest

Top new questions this week:

Why is so much railroad steel not recycled?

As I’ve wandered in many places, I have often encountered abandoned railways, or railways still in use surrounded by hundreds of discarded spikes. It makes sense in most places for scrapyards to be ...

recycling reuse  
asked by WGroleau 3 votes
answered by blacksmith37 2 votes

How much does the methane content of natural gas vary, and what is the impact?

According to Wikipedia, natural gas is a naturally occurring hydrocarbon gas mixture consisting primarily of methane, but commonly including varying amounts of other higher alkanes, and sometimes ...

greenhouse-gas-emissions natural-gas  
asked by LShaver 1 vote
answered by Sherwood Botsford 0 votes

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 ...

food housing off-grid  
asked by Bradley Lindsey 1 vote
answered by S Spring -1 votes

Greatest hits from previous weeks:

Which type of portable electric heater is better?

When one is buying a portable electric heater, there are at least three different types available: Radiative halogen heaters Fan heaters Oil-filled radiators and similar Images of examples of each ...

energy heating  
asked by Flyto 28 votes
answered by Mark Booth 19 votes

How can I determine the U-value (or R-value) of my existing double glazing system?

Is there an easy way to determine the U-value (or R-value) of an existing fitted double glazing system? Two options spring to mind, looking up the value in some kind of database (sadly I have no idea ...

diy home building-physics glazing  
asked by Mark Booth 14 votes
answered by Sherwood Botsford 4 votes

What is the most sustainable way to dispose of shoes?

About once every year or two I come to the point where I have to part with the shoes I've bonded with over my day in day out walks to work, the market, around the block yada yada. Trust me I wear my ...

recycling clothing  
asked by Eric H. 39 votes
answered by Evan Johnson 23 votes

Is it practical to use an infrared space heater along with a heat pump system?

We live in a house that has a heat pump system, for AC and heat, with a second-stage heating coil for aux/emergency heat. It frequently gets down to below 30 degrees in our climate, at which point ...

energy-efficiency heating  
asked by trpt4him 16 votes
answered by Flyto 6 votes

Dealing with flies indoors: Carnivorous Plants

I was wondering about a sustainable chemical free way of dealing with house flies. Specifically, I thought to keep this from having too many possible answers and evolving into a discussion I am ...

pest-management plants  
asked by Jonathon 13 votes
answered by That Idiot 13 votes

Why can't black plastic be recycled?

My local council now takes most types of plastic bottles, pots, tubs and trays in the recycling bin. But they specifically exclude black plastic containers. Is there a reason for this? Why can't ...

recycling plastic  
asked by vclaw 13 votes
answered by Jan Doggen 16 votes

Impact on environment: a million horses vs a million cars

Would commuting on a horse be more eco-friendly? What if there were millions of people did that? Would millions of horses be better than millions of cars?

cars fuel-efficiency environmental-impact vehicle husbandry  
asked by Ascendant 7 votes
answered by Fred 6 votes
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