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Did you read the whole thing? It took a while, but the last couple paragraphs were spent discussing ways things are getting better.
by jbeales 11y ago
Did you read the whole thing? It took a while, but the last couple paragraphs were spent discussing ways things are getting better.
- ph0rque 11y agoI did. That's my criticism of the article: only a small percentage of the article is spent discussing how we can, and are, improving things. Even then, there's an implied mistrust of those improvements: at one point, renewable energy is put in quotes as though it's not really renewable.
- jbeales 11y agoI guess that's legitimate. Let's turn this into a positive. I would love to hear more about how things are improving. Do you have more examples?
- ph0rque 11y agoSure! Here are a couple things: * Solar is winning. By 2030, solar electricity might cost as lost as $0.02 - $0.04 per kilowatt hour: several times less expensive than other kinds of electricity. Of course, there will be other costs, but it will still be the cheapest source of electricity for a lot of regions. Source: http://rameznaam.com/2015/04/14/energy-storage-about-to-get-big-and-cheap/ http://rameznaam.com/2015/04/14/energy-storage-about-to-get-... * Well, the what happens when the sun goes down and the wind dies down? You need storage. Good news on that front, too: electric vehicle batteries are getting cheaper much faster than expected: http://arstechnica.com/science/2015/07/electric-vehicle-batteries-are-getting-cheaper-much-faster-than-we-expected/ http://arstechnica.com/science/2015/07/electric-vehicle-batt... * The author mentioned about the big animal die-off because wilderness is shrinking. In the US, wilderness is in fact increasing; we don't need as much land for farming as we used to. Source: http://thebreakthrough.org/index.php/journal/issue-5/the-return-of-nature http://thebreakthrough.org/index.php/journal/issue-5/the-ret...
- jbeales 11y agoSo I took a look at those. I can't argue with the Ars article on batteries, although I wonder if it's really worth using Li-Ion batteries for homes when lead-acid is super simple, and I think cheap, (I'm not sure if the acid's recyclable, though). The first linked article talks about storage, not generation - is it the correct link? If we can get solar into the $0.02 - $0.04 range we'll have largely won the battle. On shrinking wilderness, I'm not sure about some of the methodology in that paper. For land use in agriculture it seems to have tailored the timescale studied to support the theory that we're using less land for agriculture, but even the selective charts show we're almost at peak corn acreage and headed up-and-to-the-right. The argument about saying cubic yards of wood production per hectare of forest is going up was missing a timescale, and charting wood used per dollar of GDP doesn't really tell us anything about how much wood is actually being used, it just makes a chart that looks like its heading in the right direction. I think the US may be seeing less land under agriculture, but I think a lot more food is being imported from Central & South America, and Asia, areas that were not discussed in relation to area under agriculture. I didn't look up the reputation of thebreakthrough.org, but the paper read somewhat like a "we're doing fine - stop worrying" study influenced by parties that don't want rapid change. There have been some major wins on the wilderness vs. non-wilderness front, though. Many waterways in North America is probably cleaner than it was 30 years ago, (think of the Great Lakes, and around NYC. I'm not sure about the Mississippi, Columbia, or Colorado river systems). Acid rain on the east coast & central Canada has largely been dealt with, and some species are even coming back to places they've been gone from for years, (I caught a salmon on vacation in BC last year for the first time in 20 years).
- ph0rque 11y agoYeah, the first linked article mentions the 2 - 4 cent range in one of the last paragraphs. As far as the batteries go, there's a startup developing saltwater batteries: safe, cheap, and reliable. They're aiming to compete with lead-acid batteries, and are aiming precisely for residential applications (as well as larger-scale ones): http://www.aquionenergy.com/ http://www.aquionenergy.com/
- 11y ago