Climate, pollution, clean/renewable energy Stanford U Prof, Civil & Env Eng; Director, Atmos/Energy Program Cofounder-Solutions Project; Appeared on Letterman Testified Held v Montana https://web.stanford.edu/group/efmh/jacobson/ Stanford.io/Jacobsonhttps://bsky.app/profile/mzjacobson.bsky.socialhttps://bsky.app/profile/mzjacobson.bsky.social/post/3mrdfknvzuc24A dozen nations and two US states generate more electricity from wind-solar-geothermal-hydro (WindWaterSolar) alone than they consume for all purposes. https://www.counterpunch.org/2026/07/23/a-dozen-nations-have-entered-solartopia-while-trump-leaves-u-s-industry-to-die/ The data https://web.stanford.edu/group/efmh/jacobson/WWSBook/Countries100Pct.pdf23 Jul 2026 17:49 +0000at://did:plc:pb73vbvwit4phtn7hvuv23yk/app.bsky.feed.post/3mrdfknvzuc24https://bsky.app/profile/mzjacobson.bsky.social/post/3mrdfknvzuc24A dozen nations and two US states generate more electricity from wind-solar-geothermal-hydro (WindWaterSolar) alone than they consume for all purposes. https://www.counterpunch.org/2026/07/23/a-dozen-nations-have-entered-solartopia-while-trump-leaves-u-s-industry-to-die/ The data https://web.stanford.edu/group/efmh/jacobson/WWSBook/Countries100Pct.pdf23 Jul 2026 17:49 +0000at://did:plc:pb73vbvwit4phtn7hvuv23yk/app.bsky.feed.post/3mrdfknvzuc24https://bsky.app/profile/mzjacobson.bsky.social/post/3mrd4jwrg322sAnd so far, nuclear electricity proliferation to Iran alone has cost the U.S. $37.5 bil, with another $87 bil being requested https://www.bbc.com/news/articles/c70gek2kqyno Yet, some pretend nuclear electricity is cheap and others want to proliferate small reactors to the 170 countries that don't have weapons. [contains quote post or other embedded content]23 Jul 2026 15:08 +0000at://did:plc:pb73vbvwit4phtn7hvuv23yk/app.bsky.feed.post/3mrd4jwrg322shttps://bsky.app/profile/mzjacobson.bsky.social/post/3mralj3tvhk2oThis is so crazy and irresponsible given the Iran war is due entirely to the secret development of nuclear weapons under the guise of civilian nuclear energy. Trump approves U.S.-Saudi civil nuclear energy agreement https://abcnews.com/International/trump-approves-us-saudi-civil-nuclear-energy-agreement/story?id=13497626322 Jul 2026 14:58 +0000at://did:plc:pb73vbvwit4phtn7hvuv23yk/app.bsky.feed.post/3mralj3tvhk2ohttps://bsky.app/profile/mzjacobson.bsky.social/post/3mr4uxj4oak23Wow! Solar surpasses 3 TW nameplate worldwide. Wind is >1.3 TW. Together, they make up 4.3 TW. For comparison, US average demand is 0.47 TW, so W+S can now meet a peak of 9x US power demand or, over a year, 2x US electric energy demand. https://www.energiaestrategica.com/en/notes/esperar-declaraciones-la-capacidad-solar-mundial-supera-los-3-000-gw-en-mayo-y-duplica-a-la-eolica21 Jul 2026 03:36 +0000at://did:plc:pb73vbvwit4phtn7hvuv23yk/app.bsky.feed.post/3mr4uxj4oak23https://bsky.app/profile/mzjacobson.bsky.social/post/3mr6pcnnel22gThe Canadian wildfires will hereafter be known as the #TrumpWildfires. Fueled by climate damage exacerbated by Trump's policies to promote more climate-warming air pollution that lengthens dry seasons and dries out wood, creating conditions for disastrous wildfires. [contains quote post or other embedded content]21 Jul 2026 21:00 +0000at://did:plc:pb73vbvwit4phtn7hvuv23yk/app.bsky.feed.post/3mr6pcnnel22ghttps://bsky.app/profile/mzjacobson.bsky.social/post/3mr6oez7r322jWhen will you stop paying fossil+bioenergy companies to poison our air, Trump? 100,000 Americans die from fossil+bio air pollution yearly You take money from wind+solar, which eliminate deaths, & give it to fuel companies to kill more+increase climate damage thus fire damage https://x.com/marlene4719/status/207904105112215599521 Jul 2026 20:44 +0000at://did:plc:pb73vbvwit4phtn7hvuv23yk/app.bsky.feed.post/3mr6oez7r322jhttps://bsky.app/profile/mzjacobson.bsky.social/post/3mr4uxj4oak23Wow! Solar surpasses 3 TW nameplate worldwide. Wind is >1.3 TW. Together, they make up 4.3 TW. For comparison, US average demand is 0.47 TW, so W+S can now meet a peak of 9x US power demand or, over a year, 2x US electric energy demand. https://www.energiaestrategica.com/en/notes/esperar-declaraciones-la-capacidad-solar-mundial-supera-los-3-000-gw-en-mayo-y-duplica-a-la-eolica21 Jul 2026 03:36 +0000at://did:plc:pb73vbvwit4phtn7hvuv23yk/app.bsky.feed.post/3mr4uxj4oak23https://bsky.app/profile/mzjacobson.bsky.social/post/3mqrodtojfs2bThe very good and bad news on climate "Here’s the good news: Green energy is getting better and cheaper, faster than we had ever dared hope." @billmckibben.bsky.social @ezrakleinbot.bsky.social @nytimes.com https://www.nytimes.com/2026/07/10/opinion/ezra-klein-podcast-bill-mckibben.html16 Jul 2026 16:38 +0000at://did:plc:pb73vbvwit4phtn7hvuv23yk/app.bsky.feed.post/3mqrodtojfs2bhttps://bsky.app/profile/mzjacobson.bsky.social/post/3mqhsirwybs25Batteries can now meet 75% of average grid demand and 44% of peak demand for 4 hours every day in the world's 4th-largest economy at a cost less than 1 percent the price of electricity More info https://www.caiso.com/documents/key-statistics-jun-2026.pdf https://web.stanford.edu/group/efmh/jacobson/WWSBook/CAWWSIndividual.pdf https://www.youtube.com/shorts/GQeOje2GoPU12 Jul 2026 18:26 +0000at://did:plc:pb73vbvwit4phtn7hvuv23yk/app.bsky.feed.post/3mqhsirwybs25https://bsky.app/profile/mzjacobson.bsky.social/post/3mqrodtojfs2bThe very good and bad news on climate "Here’s the good news: Green energy is getting better and cheaper, faster than we had ever dared hope." @billmckibben.bsky.social @ezrakleinbot.bsky.social @nytimes.com https://www.nytimes.com/2026/07/10/opinion/ezra-klein-podcast-bill-mckibben.html16 Jul 2026 16:38 +0000at://did:plc:pb73vbvwit4phtn7hvuv23yk/app.bsky.feed.post/3mqrodtojfs2bhttps://bsky.app/profile/mzjacobson.bsky.social/post/3mqky2qpyac2gLazard 2026 US leveled electricity cost Wind+solar the cheapest new electricity Most expensive? Small+large nuc On wind: $68 (37-99)/MWh Util PV: $69 (40-98)/MWh Gas CC 1.3xwind Coal 1.83xwind Gas peak 3.1xwind Nuc SMR+large 3.15xwind Commun PV 33% less than nuc https://www.lazard.com/news-announcements/lazard-releases-2026-levelized-cost-of-energyplus-report-pr/14 Jul 2026 00:44 +0000at://did:plc:pb73vbvwit4phtn7hvuv23yk/app.bsky.feed.post/3mqky2qpyac2ghttps://bsky.app/profile/mzjacobson.bsky.social/post/3mqmpk6uzis2nStrange that anyone would support new nuclear, which depends on cooling, in the face of the ongoing superlinear global temperature rise France Cuts 6.4 GW of Nuclear Power as Heatwave Grips Country https://oilprice.com/Latest-Energy-News/World-News/France-Cuts-64-GW-of-Nuclear-Power-as-Heatwave-Grips-the-Country.html Superlinear global temperature rise https://data.giss.nasa.gov/gistemp/graphs_v4/14 Jul 2026 17:17 +0000at://did:plc:pb73vbvwit4phtn7hvuv23yk/app.bsky.feed.post/3mqmpk6uzis2nhttps://bsky.app/profile/mzjacobson.bsky.social/post/3mqml3t7jos2gWho is winning the clean, renewable energy World Cup? Multiple surprises and good news. https://foresightmedia.com/story/sbRhvwfu-aBr411Ym-214f9 @smorgan.bsky.social14 Jul 2026 15:57 +0000at://did:plc:pb73vbvwit4phtn7hvuv23yk/app.bsky.feed.post/3mqml3t7jos2ghttps://bsky.app/profile/mzjacobson.bsky.social/post/3mqlbh74tp225Even the untrained eye can see that intermittent WindWaterSolar is closer to matching demand, particularly summer peak demand, than is baseload nuclear, year after year after year. Nuclear stays flat, except when half of it is down 1-3 times per year. WWS rises in summer. [contains quote post or other embedded content]14 Jul 2026 03:32 +0000at://did:plc:pb73vbvwit4phtn7hvuv23yk/app.bsky.feed.post/3mqlbh74tp225https://bsky.app/profile/mzjacobson.bsky.social/post/3mqky2qpyac2gLazard 2026 US leveled electricity cost Wind+solar the cheapest new electricity Most expensive? Small+large nuc On wind: $68 (37-99)/MWh Util PV: $69 (40-98)/MWh Gas CC 1.3xwind Coal 1.83xwind Gas peak 3.1xwind Nuc SMR+large 3.15xwind Commun PV 33% less than nuc https://www.lazard.com/news-announcements/lazard-releases-2026-levelized-cost-of-energyplus-report-pr/14 Jul 2026 00:44 +0000at://did:plc:pb73vbvwit4phtn7hvuv23yk/app.bsky.feed.post/3mqky2qpyac2ghttps://bsky.app/profile/mzjacobson.bsky.social/post/3mqkul7awk22nTen Countries now supply 100-257% of their electricity demand with WindWaterSolar Data https://web.stanford.edu/group/efmh/jacobson/WWSBook/Countries100Pct.pdf Graphs https://web.stanford.edu/group/efmh/jacobson/WWSBook/WWS-2ndTierCountries.pdf WWS versus electricity price worldwide https://web.stanford.edu/group/efmh/jacobson/WWSBook/WorldWWSvPriceAll.pdf and in the U.S. https://web.stanford.edu/group/efmh/jacobson/WWSBook/WWSPctDemandVsPrice.pdf13 Jul 2026 23:41 +0000at://did:plc:pb73vbvwit4phtn7hvuv23yk/app.bsky.feed.post/3mqkul7awk22nhttps://bsky.app/profile/mzjacobson.bsky.social/post/3mqg5dt254k2kIf successful, Li-air batteries will kick jet fuel out of the sky and bunker fuel out of the ocean Li-ion: ~250-270 Wh/kg Li-air: 12 kWh/kg, near gasoline CATL eyes 12 kWh/kg Li-Air EV Bat https://interestingengineering.com/energy/catl-12000-wh-kg-lithium-air-ev-battery Air Energy to Scale Li-Air Bat https://natlawreview.com/press-releases/air-energy-closes-seed-round-scale-doe-validated-solid-state-lithium-air12 Jul 2026 02:35 +0000at://did:plc:pb73vbvwit4phtn7hvuv23yk/app.bsky.feed.post/3mqg5dt254k2khttps://bsky.app/profile/mzjacobson.bsky.social/post/3mqhsirwybs25Batteries can now meet 75% of average grid demand and 44% of peak demand for 4 hours every day in the world's 4th-largest economy at a cost less than 1 percent the price of electricity More info https://www.caiso.com/documents/key-statistics-jun-2026.pdf https://web.stanford.edu/group/efmh/jacobson/WWSBook/CAWWSIndividual.pdf https://www.youtube.com/shorts/GQeOje2GoPU12 Jul 2026 18:26 +0000at://did:plc:pb73vbvwit4phtn7hvuv23yk/app.bsky.feed.post/3mqhsirwybs25https://bsky.app/profile/mzjacobson.bsky.social/post/3mqhooanquk26The day-by-day 62% decline in fossil gas between 2023 and 2026 on the California ISO grid.12 Jul 2026 17:18 +0000at://did:plc:pb73vbvwit4phtn7hvuv23yk/app.bsky.feed.post/3mqhooanquk26https://bsky.app/profile/mzjacobson.bsky.social/post/3mqcn53qybk2eLet me repeat Batteries can now meet 75.3% of average grid demand and 44.4% of the year's highest grid demand for 4 hours at a cost less than 1% the price of electricity in the world's 4th-largest economy. So, whoever is still standing claiming fossil fuels are needed, sit back down. [contains quote post or other embedded content]10 Jul 2026 17:07 +0000at://did:plc:pb73vbvwit4phtn7hvuv23yk/app.bsky.feed.post/3mqcn53qybk2ehttps://bsky.app/profile/mzjacobson.bsky.social/post/3mqg5dt254k2kIf successful, Li-air batteries will kick jet fuel out of the sky and bunker fuel out of the ocean Li-ion: ~250-270 Wh/kg Li-air: 12 kWh/kg, near gasoline CATL eyes 12 kWh/kg Li-Air EV Bat https://interestingengineering.com/energy/catl-12000-wh-kg-lithium-air-ev-battery Air Energy to Scale Li-Air Bat https://natlawreview.com/press-releases/air-energy-closes-seed-round-scale-doe-validated-solid-state-lithium-air12 Jul 2026 02:35 +0000at://did:plc:pb73vbvwit4phtn7hvuv23yk/app.bsky.feed.post/3mqg5dt254k2khttps://bsky.app/profile/mzjacobson.bsky.social/post/3mqf5nle63227One day, a battery record. The next, a solar record Record 23.195 GW peak solar Fri Jul 10 on the CAISO grid 100th of 101 days & 166th of 191 (87%) in '26 with WWS>100% of demand Gas down 62% in '26 v '23 Solar, wind & batteries pushing gas off the grid, which is now the most stable in the US11 Jul 2026 17:08 +0000at://did:plc:pb73vbvwit4phtn7hvuv23yk/app.bsky.feed.post/3mqf5nle63227https://bsky.app/profile/mzjacobson.bsky.social/post/3mqcn53qybk2eLet me repeat Batteries can now meet 75.3% of average grid demand and 44.4% of the year's highest grid demand for 4 hours at a cost less than 1% the price of electricity in the world's 4th-largest economy. So, whoever is still standing claiming fossil fuels are needed, sit back down. [contains quote post or other embedded content]10 Jul 2026 17:07 +0000at://did:plc:pb73vbvwit4phtn7hvuv23yk/app.bsky.feed.post/3mqcn53qybk2ehttps://bsky.app/profile/mzjacobson.bsky.social/post/3mqcmlv5h3c2eSpread the word - another record on the 99th of 100 days in CA with >100% clean, renewable energy. New battery peak discharge record of 12.994 GW on the 27th straight, 99th of 100, and 160th of 185 (87%) days in '26 with WindWaterSolar meeting > 100% of demand, for an avg of 5.4 h/day.10 Jul 2026 16:57 +0000at://did:plc:pb73vbvwit4phtn7hvuv23yk/app.bsky.feed.post/3mqcmlv5h3c2ehttps://bsky.app/profile/mzjacobson.bsky.social/post/3mq3d5cesg22zAnd before the trolls come out claiming WWS increases prices, data show that more WWS correlates with lower electricity prices. More fossils, nuclear, and biomass correlate with higher prices This applies to the world https://web.stanford.edu/group/efmh/jacobson/WWSBook/WorldWWSvPriceAll.pdf and US states https://web.stanford.edu/group/efmh/jacobson/WWSBook/WWSPctDemandVsPrice.pdf [contains quote post or other embedded content]07 Jul 2026 19:19 +0000at://did:plc:pb73vbvwit4phtn7hvuv23yk/app.bsky.feed.post/3mq3d5cesg22z