7 votes

Will bitcoin help us to decentralise our communities and help us live a more sustainably

Another sustainability aspect of bitcoin (and cryptocurrencies in general) is the electricity consumption of mining: "The electricity used to mine bitcoin this year is bigger than the annual usage ...
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  • 5,903
6 votes
Accepted

Would a tax on non-organic meat have environmental benefits?

Would levying taxes on non-organic meat be an effective means to reduce consumption and thus reduce the environmental harm? Yes. But. It would add complexity compared to just taxing all meat, and ...
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  • 3,745
4 votes
Accepted

Does the price of polysilicon (for solar PV panels) depend on oil prices?

I did some digging and found data with a bit more resolution. First, polysilicon prices since 2010: Source: Fu, et al, Economic Measurements of Polysilicon for the Photovoltaic Industry: Market ...
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  • 11.2k
4 votes

Does the price of polysilicon (for solar PV panels) depend on oil prices?

No. As the graphs provided show, the prices both spike during the GFC, loosely speaking, but the oil price spikes later and declines faster, then continues a general slow rise while the price of ...
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  • 3,745
4 votes

Does the price of polysilicon (for solar PV panels) depend on oil prices?

Here's a quick answer; hopefully we'll see some more in depth answers too. Looking at the given charts closely, the price of polysilicon appears to decline from around $75 in early 2010 to $17 in ...
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4 votes

Does a PV panel take more energy to build than it generates in its lifetime?

Yes, PV is viable. That's why somewhere around a billion solar panels have been connected to the grid - about 200 GW of capacity, with another 50 GW or so coming online in 2016. I'm afraid that the ...
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  • 14.6k
4 votes

Will bitcoin help us to decentralise our communities and help us live a more sustainably

they remove the centralised middle man from individuals transactions Indeed. However, this doesn't mean that the resulting system is more sustainable. people will be able to use a more secure ...
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  • 41
3 votes

Will bitcoin help us to decentralise our communities and help us live a more sustainably

No, decentralised currencies won't help society be more sustainable. Removing the role of a Central Bank makes it much harder to cope with macroeconomic changes in circumstances. There's nothing ...
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  • 14.6k
3 votes
Accepted

Are there long-distance water pipelines emanating from the North American Great Lakes region? Why or why not?

I can provide an answer for the first part of the question: No new water diversions out of the Great Lakes region are allowed. Great Lakes water agreement The 2005 Great Lakes–Saint Lawrence River ...
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  • 11.2k
3 votes
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Why the eco-friendly soy ink is not abundent on the market?

tl;dr: A lot of soy ink is used, but mixed with petroleum-based ink. According to Wikipedia: A major problem with soy ink is that it takes more time to dry than petroleum-based inks, due to its ...
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  • 11.2k
2 votes

Will bitcoin help us to decentralise our communities and help us live a more sustainably

Communities are more than what currency they are using, whether Bitcoin or cash or debit/credit cards (considering a debit/credit card as a proxy for cash). Thinking about what makes a currency useful ...
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2 votes

Could hotels charge guests for the utilities they use to encourage conservation?

I don't know about to what extent it currently exists, but I can imagine it could be implemented successfully with a "reasonable usage" policy. In my experience as a customer, being asked to pay very ...
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  • 21
2 votes

Impact of vegetarianism on the meat industries

Both of Tim's points (re: negative population growth and elastic demand) are important points, but I don't think they're doing a good job of answering your question. Unlike people living in the 1980s, ...
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1 vote

What are the ecological effects of buying "imperfect produce"?

The “it would go to waste” is often a marketing gimmick. Much of that produce would be sold anyway or it would be used for juice, purée, etc. where the end user doesn’t see the “ugliness” anyway. To ...
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  • 136
1 vote

What are the ecological effects of buying "imperfect produce"?

The quantity of imperfect produce that never makes it to market is staggering. This is a huge opportunity for enterprising individuals who are able to recognize how much money can be made by simply ...
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1 vote

Impact of vegetarianism on the meat industries

Mass producers of the grain consumed in feedlots proudly assert that they are feeding the world, as if they want a medal for their efforts. This is an obvious consequence of cognitive dissonance. They ...
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1 vote

Impact of vegetarianism on the meat industries

Someone has to suggest the obvious answer... for the record. Q: "is there an entirely different solution?" A: Don't have children. Earth's problem isn't solely and exclusively with what its Human ...
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  • 2,734
1 vote

Could hotels charge guests for the utilities they use to encourage conservation?

Yes, hotels could implement room-based monitoring systems for electricity and water consumption, but they have no financial motivation to do so and the effects of doing so are marginal verging on ...
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  • 2,734
1 vote

Could hotels charge guests for the utilities they use to encourage conservation?

One of the issues I think would be cost of installing water and electricity meters for each room, including the associated labor cost. It would add to the capital cost of the building. The other ...
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  • 3,042
1 vote

How much is the environmental benefit of organic food offset by its higher economic cost when purchased?

Is there a metric to measure average 'environmental impact' per economic dollar? I don't think that this is possible. If you're working in the oil and gas sector, your environmental impact per dollar ...
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  • 426
1 vote
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Is there any way to know if by purchasing renewable energy certificates from my provider is actually modifying their portfolio?

The best way to find out would probably be to try to obtain a contact in the company who is responsible for running the program, or at least for answering questions about it, and arranging a meeting ...
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1 vote

What have been the economic factors behind the build of tracking PV systems?

Tracking PV means (by it's definition) a more complex construction. It means more complex servicing and installation. But why not add features to reach a much better solar gain and lower price per ...
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  • 2,459
1 vote

What have been the economic factors behind the build of tracking PV systems?

Lots of tracking PV has NOT been build. Recently I read a story that current PV installations are running about 1 GW/week. Yes, WEEK. That is about the same amount as all of the 20th century. PV ...
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