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Combined display of all available logs of the change wiki. You can narrow down the view by selecting a log type, the username (case-sensitive), or the affected page (also case-sensitive).

23:22, 27 March 2023 Elie talk contribs created page Lithium-ion (Redirected page to Lithium-ion batteries) Tag: New redirect
23:08, 27 March 2023 Elie talk contribs created page Energy storage/challenge 1 (Redirected page to The great battery challenge) Tag: New redirect
22:34, 27 March 2023 Elie talk contribs created page EROI of energy storage (Redirected page to Energy storage/EROI) Tag: New redirect
22:27, 27 March 2023 Elie talk contribs created page Energy storage/EROI (Created page with "==Overview== EROI = Energy Return On Investment. It's a concept often used for assessing the viability of energy sources such as solar, nuclear, etc. But I believe it also needs to be applied to energy storage. EROI = energy_returned / energy_invested <code>energy_invested</code> should include a few things: * the energy it takes to manufacture or construct the energy storage{{x|preferably including the energy needed to mine the mater...")
19:12, 27 March 2023 Elie talk contribs created page Draft:Climate change (Created page with "==Impact on weather== Even though climate change may only increase the ''average'' temperatures by 1 or 2 degrees Celsius, the ''fluctuation'' of temperatures is increased far more: More days of extreme heat and extreme cold{{x|and of course there will always be deniers saying "what ever happened to global warming, it's so cold!"}}, more tornadoes and hurricanes.")
22:44, 24 March 2023 Elie talk contribs created page The great battery challenge (Created page with "So we need a lot of batteries for energy storage. It has to be done in a way that... * doesn't require too many rare minerals * doesn't require too much energy to produce and later recycle{{x|This implies an additional requirement: Recyclability}} * doesn't require too much labor These doesn't need to be a "one size fits all" solution. Clearly different battery tech is good for different applications. But as a simple viability test, we nee...")
22:39, 24 March 2023 Elie talk contribs created page Draft:Lithium vs oil (Created page with "Some people see the [transition to renewable energy] as "Big Lithium is replacing Big Oil". This brings up a valid question: What ''would be'' lithium's environmental impact, compared to the oil we're trying to phase out? Thought experiment: Status quo -vs- perfectly renewable energy powering lithium-battery-based electric vehicles: * oil: impact of mining{{qn}} + climate change{{qn}} * lithium: impact of mining{{qn}}")
21:06, 24 March 2023 Elie talk contribs created page Lithium-ion/challenge 1/quick research (Created page with "[https://www.youtube.com/watch?v=DFL8iQ3p3cI How Removing Cobalt From Batteries Can Make EVs Cheaper - YouTube] * 1:40 - cobalt helps prevent battery fires * 5:35 - lithium iron phosphate (LFP) batteries are already an alternative, they just don't have as good an energy density{{qn}} -- maybe that's ok tho?")
20:59, 24 March 2023 Elie talk contribs created page Short-range electric vehicles (Created page with "So far, the best EVs seem to come at a high environmental cost - especially rare minerals{{x|such as cobalt}} in the batteries. They also are quite expensive. What if people were willing to drive cheaper EVs with less battery capacity{{x|either due to using batteries with less rare metal content, and/or just ''smaller'' batteries}} and thus less range? Clearly this doesn't cover '''all''' use-cases. Road trips would still need longer-range vehicle...")
17:18, 24 March 2023 Elie talk contribs created page Lithium-ion/challenge 1 (Created page with "Challenge: Lithium-ion batteries without so much cobalt. Reason: * Global cobalt reserves ''severely'' limit the scalability of electric vehicles that run on typical lithium-ion tech. * Cobalt mining involves a disproportionately large amount of ''child labor''. Tradeoffs to overcome: * Cobalt is currently needed for battery stability{{en}} and performance{{en}} Maximum viable cobalt level: * ''Calculation will be added here soon.'' Alternatives to avoid: * O...")
16:56, 24 March 2023 Elie talk contribs created page Draft:Cobalt (Created page with "Cobalt is a rare metal (mineral) (element on the periodic table). ==Demand==  Lithium-ion batteries make up most of the world's demand for cobalt. But this demand would be nearly {{p2|250 times higher|<q>It is estimated that 1 in 250 cars on the road is electric</q> - <cite>How many electric cars in the world? - Feb 1, 2023 - 8 Billion Trees - https://8billiontrees.com/carbon-offsets-credits/cars/how-many-electric-cars-in-the-world/</cite...")
14:46, 24 March 2023 Elie talk contribs created page Draft:Wind (Created page with "Just how intermittent is wind power? We know for example solar can usually be smoothed out with a day{{x|multiplied by average power demand = energy stored}}'s worth of energy storage, but what about for wind power - is a day enough? Or is it common to have no wind for weeks/months and then have strong wind later? If so, is wind really that useful in a non-fossil-fuel world? {{x|Biomass waste is perhaps the only renewable energy source that could ondemand fill in...")
14:20, 23 March 2023 Elie talk contribs created page Summary:How Finland Ended Homelessness (Created page with "This is a summary of [https://www.youtube.com/watch?v=kbEavDqA8iE this YouTube video] Housing first {{en}} * helps people more effectively * costs less overall")
13:56, 23 March 2023 Elie talk contribs created page Draft:Packaging (Created page with "Packaging is needed for food and non-food products alike. Even in a world without marketing, packaging is still needed to protect products from damage. In this way, there is a tradeoff between packaging waste and food waste{{x|as well as waste of consumer goods due to damages}}. TODO: status quo stats: * how much packaging is thrown out every day * how much of all packaging is plastic * list all the negative environmental effects of disposible plastic ** is there an...")
17:43, 22 March 2023 Elie talk contribs created page Estimating environmental impacts based on costs (Created page with "When something is ''expensive'', there's a good chance it takes a lot of energy, materials, or labor to make. This is especially important when considering potential green solutions. It's tempting to assume that money/capitalism is the only thing holding an idea back, but we should try to test that empirically if we can, by looking at material conditions. Unfortunately, good data is hard to come by. When in doubt, we can at least do a rough estimate of an i...")
16:42, 22 March 2023 Elie talk contribs created page Electrify everything (Created page with ""Electrify everything" is a simple way to describe the phasing-out of fossil fuels. Anything powered by coal/oil/gas would instead be powered by electricity. ====How much more electricity would be needed?==== * For transport: See electric_vehicles/energy for a quick estimate. * For industrial: The exact numbers will be posted to this page soon. ====Can we even generate that much electricity?==== Not without major technological breakthroughs in solar & win...")
16:30, 22 March 2023 Elie talk contribs created page Sulfur hexafluoride (Created page with "Sulfur hexafluoride (SF6) is an extremely potent greenhouse gas. Its main use is in the switching stations of power grids. Other minor uses include the gas inside tennis balls. ==Research needed== * How much more SF6 would be involved if electrify everything is the main way to replace fossil fuels? * Are there practical solutions to avoid almost all SF6 emissions? If so, what are they?")
16:29, 22 March 2023 Elie talk contribs created page Greenhouse gases (Created page with "File:ghg-usa-2020.png  Total U.S. Emissions in 2020 = 5,981 Million Metric Tons of CO2 equivalent (excludes land sector). Percentages may not add up to 100% due to independent rounding. The pie chart percentages are of total warming effect (CO2 equivalent), not the mass of the gases. ==Gases by potency== Some gases are far more potent than others, by mass. Luckily, the more pot...")
16:12, 22 March 2023 Elie talk contribs created page File:ghg-usa-2020.png (Greenhouse gas emissions by type - pie chart of CO2eq - USA Source: [https://www.epa.gov/ghgemissions/overview-greenhouse-gases Overview of Greenhouse Gases - US EPA])
16:12, 22 March 2023 Elie talk contribs uploaded File:ghg-usa-2020.png (Greenhouse gas emissions by type - pie chart of CO2eq - USA Source: [https://www.epa.gov/ghgemissions/overview-greenhouse-gases Overview of Greenhouse Gases - US EPA])
19:41, 21 March 2023 Elie talk contribs created page Summary:Aluminum Producers Emit Some of the World's Most Damaging Greenhouse Gases (Created page with "This is a summary of [https://insideclimatenews.org/news/23122022/china-aluminum-immortals/ an article] from Inside Climate News, originally titled "Why Chinese Aluminum Producers Emit So Much of Some of the World’s Most Damaging Greenhouse Gases". ==Problem== PFCs{{x|perfluorocarbons - especially the gases CF4 and C2F6}} are greenhouse gases that are less common than CO2, but far more potent and long-lasting. Some alu...")
19:39, 21 March 2023 Elie talk contribs created page File:aluminum-pfc-emissions.png (PFC emissions of various aluminum production facilities. Units: Tons CO2eq per ton of aluminum produced. Source: : Article: [https://insideclimatenews.org/news/23122022/china-aluminum-immortals/ Why Chinese Aluminum Producers Emit So Much of Some of the World’s Most Damaging Greenhouse Gases - Inside Climate News] : Authors: Phil McKenna, and Lili Pike, Grid China Reporter : Date: December 23, 2022)
19:39, 21 March 2023 Elie talk contribs uploaded File:aluminum-pfc-emissions.png (PFC emissions of various aluminum production facilities. Units: Tons CO2eq per ton of aluminum produced. Source: : Article: [https://insideclimatenews.org/news/23122022/china-aluminum-immortals/ Why Chinese Aluminum Producers Emit So Much of Some of the World’s Most Damaging Greenhouse Gases - Inside Climate News] : Authors: Phil McKenna, and Lili Pike, Grid China Reporter : Date: December 23, 2022)
10:59, 19 March 2023 Elie talk contribs created page Draft:Why scalability matters (Created page with "Not because "one size fits all"! There are hundreds of ways to produce food. But for each, it's worth doing a thought experiment: "If this was scaled up to 8 billion people, would Earth even have enough resources{{x|and can it be done '''without''' major ecological destruction worse than the status quo?}}". We promote ideas where the answer is "yes". That way, any '''mix of solutions''' will be ecologically sound. We want a diversity of solutions for the world, no...")
10:47, 19 March 2023 Elie talk contribs created page Draft:Why calories matter (Created page with "If you live in a {{ap|first-world|is that politically incorrect?|developed|does a wide enough audience understand what that means?|rich|too vague on its own}} country, it might seem strange & wrong to see ideas centered around optimizing calorie{{x|or in some cases, protein}} production. After all, humans need a lot more than calories & protein! There are over 30 essential vitamins & minerals that everyone needs. And maybe you live in a society where people...")
17:05, 18 March 2023 Elie talk contribs created page Talk:Biomass waste (Created page with "==Disambiguation== This page is focused on crop residues. There are other forms of biomass waste as well, right? So should this page be renamed to crop residues, and then the biomass waste page would contain a link to it? ~~~~")
17:25, 15 March 2023 Elie talk contribs created page Template:Xn (Created page with "[EXAMPLE needed]")
17:33, 14 March 2023 Elie talk contribs created page Template:Faq (Created page with "<div style="margin-left:2em;text-indent:-2em"> '''Q:''' <q>{{{1}}}</q> </div> <div style="margin-left:2em;text-indent:-2em"> '''A:''' {{{2}}} </div>")
17:12, 14 March 2023 Elie talk contribs created page Template:TALK (Created page with "[[{{TALKPAGENAME}}|discussion]]")
03:36, 14 March 2023 Elie talk contribs created page Term:viable (Created page with "On this wiki, we have high standards for the word "viable". When it comes to sustainability, it's not enough for an idea to just work in some niche market. It has to be ''scaleable'' enough to that it could actually replace existing systems that are harming the planet. We need to make sure that the idea wouldn't in fact become ''worse'' for the planet if scaled up. Here are some factors to consider: * How much energy would it consume? * How many rare minerals wo...")
00:11, 14 March 2023 Elie talk contribs moved page Maximum sustainable animal consumption to Limits to sustainable animal consumption (More clear)
15:08, 13 March 2023 Elie talk contribs created page Wattage adders (Redirected page to Wattage adder) Tag: New redirect
15:06, 13 March 2023 Elie talk contribs created page Wattage adder (Created page with "A wattage adder is an electronic circuit that can combine power from multiple sources, including ones that are intermittant & unreliable. Each source might also have a different voltage & current rating. ==Potential applications== * Robust solar panels: If one cell fails{{x|such as due to age; or due to manufacturing defects. The latter is especially important: If we want solar to be widespread enough to replace fossil fuels, then factories have to produce an rooftop...")
15:00, 13 March 2023 Elie talk contribs created page Draft:Balanced diet with junk food (Created page with "Junk food is convenient and high in calories, but it lacks other nutrients: vitamins, minerals, protein and fibre tend to be missing. Luckily there are ways to "fill in the gaps" to make a balanced diet, even when most of the calories come from junk food. Tl;dr: Eat about half a pound per day (227g/day) of dry lentils or beans or peas. Also take a daily multivitamin.{{en}} The rest of your calories can come from junk food. ==TODO== * include nutrition calculator links...")
07:03, 13 March 2023 Elie talk contribs created page the change wiki:Notation (Created page with "This wiki comes with some unique notation for expressing ideas. * Inline expandables ** A block of text, sometimes in the middle of a sentence{{x|this is an example of an inline expandable!}}, to provide important nuances without ruining the flow{{x|or overwhelming the reader with walls of text upfront}}. * Popup notes ** Similar to above, but used in tables or when the note has multiple lines.{{p|This is an example of a popup note!}} * Green links ** These also generate...")
17:07, 12 March 2023 Elie talk contribs moved page Draft:Vertical farming to Vertical farming without leaving a redirect (Published)
17:05, 12 March 2023 Elie talk contribs created page File:vertical-farm-1.jpg (Inside a vertical farm Image source: [https://www.usda.gov/media/blog/2018/08/14/vertical-farming-future Vertical Farming for the Future - USDA])
17:05, 12 March 2023 Elie talk contribs uploaded File:vertical-farm-1.jpg (Inside a vertical farm Image source: [https://www.usda.gov/media/blog/2018/08/14/vertical-farming-future Vertical Farming for the Future - USDA])
15:22, 12 March 2023 Elie talk contribs created page Draft:Vertical farming (Created page with "thumb Vertical farming is the idea that food could be grown in tall towers with multiple floors, which is supposed to save space and use less land (thus saving more of the environment), but on close examination we see that it doesn't. ==Not a solution to feed the world== ===Powering the grow lights=== Natural sunlight is proportional to land{{x|Sure, technically you could argue that a tall building captures more sun than the land...")
12:50, 12 March 2023 Elie talk contribs created page the change wiki:Privacy policy (Created page with "Everything on this wiki is public.")
12:43, 12 March 2023 Elie talk contribs created page the change wiki:General disclaimer (Created page with "<tabs><tab name="phrasing 1"> This wiki contains content that may advocate for (or inspire) specific political actions. If you take such actions, you bear full responsibility for the consequences. </tab><tab name="phrasing 2"> This is a wiki to inform people & organizations which actions are most effective at making the world a better place. We try to be as accurate & unbiased as possible, but we can't guarantee perfection. If you follow any advice provided by this wiki,...")
16:48, 10 March 2023 Elie talk contribs created page Talk:Rooftop solar (Created page with "==This page could be organized better== I was thinking it could go as follows: * start with the general idea that it could cover most energy demands in medium-density cities * that suburban houses would produce excess power which could (in many cases) meet inner-city energy demands * that it could charge electric vehicles, mostly during peak sunlight * that solar farms and wind power could fill in the difference when rooftop solar isn't enough * link to a sub...")
16:35, 10 March 2023 Elie talk contribs created page Energy/solutions (Created page with "These are some possible solutions to the energy crisis - everything ranging from tangible to pie-in-the-sky. {|class="wikitable" |#Consuming less |Viable but requires both personal and systemic changes |- |#Renewables + energy storage |Requires innovations |- |Nuclear fission breeder reactors |Requires innovations |- |Nuclear fusion |Requires massive & unlikely{{p|unlikely in the near future}} innovations |- |Fossil fuels with direct air carbon...")
15:01, 10 March 2023 Elie talk contribs created page Draft:Bears and crocodiles analogy (Created page with "We have to reconcile two contrasting pieces of advice that people often say: # Always be willing to fight. Don't appease people or they will walk all over you. # Avoid the fight. It's not worth getting injured over small things, even if you win. People who ''always'' live by Advice 1 will get in needless fights. People who ''always'' live by Advice 2 will get taken advantage of. Clearly a balance should be found. I propose another way of looking at it: * Advice 1...")
14:37, 10 March 2023 Elie talk contribs created page Draft:Public urination (Created page with "* intro * cases where the person urinating is accused of indecent exposure ** can be argued against in court *** the defendant made a reasonable attempt to find a place to [urinate ''without'' being seen/exposed] {{x|yes these ugly brackets are needed here for unambiguous language. Maybe there's some other grammar convention that could be used instead? I bet legalese has some kinda standard}} *** urination is a basic human need **** it's not reasonable to expect people t...")
13:42, 10 March 2023 Elie talk contribs created page Draft:Tradeoffs of shared living (Created page with "Living with roommates or communally is potentially better for the environment, using resources more efficiently. But in some ways, it can actually be ''less'' efficient. ==Efficiencies== TODO ==Inefficiencies== * having to ventilate the home whenever something makes a bad smell (cooking, bathroom, smoking, etc). This wastes especially a lot of energy for heating in the winter. The above inefficiencies are with regards to physical resources. but there are also...")
13:36, 10 March 2023 Elie talk contribs created page Draft:Food waste/burnt (Created page with "Burnt food has no nutrition, and is known to promote cancer. Here's how to remove the burned parts from food: Toast: Use a seraded knife that has no sharp point. Make sure the knife is not wet. Shave off the bits on one side. It gets easier with practice. ==TODO== * pics: non-sharp knife, toast before, toast after")
13:33, 10 March 2023 Elie talk contribs created page Draft:Crop choices/energy (Created page with " The crop choices page suggests that vegetables sometimes get extraordinarily high crop yields, and so the most ''land-efficient'' way to feed the world could be to grow massive amounts of vegetables, dehydrate them, powderize them, and use that as flour. But the how much energy would that food-dehydration take? Since most of today's energy comes from fossil fuels, one way to look at this would be... For every 1kg of dry product, how many energy/unit...")
13:23, 10 March 2023 Elie talk contribs moved page Mining/draft to Draft:Mining without leaving a redirect (New naming convention)
13:22, 10 March 2023 Elie talk contribs moved page Frugalism/draft to Draft:Frugalism without leaving a redirect (New naming convention)