Mark Z. Jacobson
@mzjacobson
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Prof-Civil & Env Eng; Director-Atmosphere/Energy Prog; Research-climate, air pollution & clean/renewable energy; Cofounder-Solutions Project/100% Movement
Stanford University
Joined February 2010
The scientific bases for all U.S. state laws and proposed laws to go to 100% renewable, clean, 0-C, and/or 0-emissions & the #GreenNewDeal
https://t.co/pGaym7I46V
https://t.co/YGWhmF0LYS
https://t.co/p8savBkjTF The only way to do any of these is with #WindWaterSolar
The scientific basis for #California's #SB100 (Effectively #100% renewable electricity by 2045) & Exec Order B-55-18 (effectively 100% renewable all-energy by 2045 to eliminate air pollution+GHGs) #GCAS2018 @GovPressOffice @StanfordEnergy @StanfordWoods @100isNow @350 @TheRE100
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On shortest day of year, Calif reaches 100% WindWaterSolar for part of 219th day in 2025 Fossil gas down 37.4% in '25 v '23 Batteries up 183% v '23 PV up 39.4% v '23 Wind up 4.4% v '23 51.7% of all in-state electricity from WWS v 44.7% in '23 CA will be 100% WWS 24/7 by 2039
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Good job, Trump, killing more people from fossil fuel pollution and sending the US further behind China, who is 100 years faster than us: https://t.co/zoRcoqTczK Trump admin pauses leases for some offshore wind projects over national security concerns
pubs.rsc.org
Whether the world addresses global warming, air pollution, and energy insecurity in a timely manner depends largely on country transition rates to clean, renewable energy. Yet, no study has examined...
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@JessePeltan New paper: China's current rate of Wind-Water-Solar (WWS) installations puts it on track to transition to 100% WWS across all energy sectors, thus eliminate air pollutants & GHGs from energy, by 2051 U.S. & India won't get there until past 2130 https://t.co/eWfEJlUEgZ
New paper: China's current rate of Wind-Water-Solar (WWS) installations puts it on track to transition to 100% WWS across all energy sectors, thus eliminate air pollutants & GHGs from energy, by 2051 The U.S. & India won't get there until past 2130 https://t.co/zoRcoqTczK
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Sleigh the season with the most personal gift around. Get them a Cameo video!
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2/4) China's clean-energy buildout is the fastest in history, 20x faster than France's peak nuclear buildout. China is already producing ∼54% of the WWS the US needs in 2050 to go 100% WWS across all energy sectors. Seven countries are transitioning faster than China.
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What are Firebricks, and How Can They Help Save Our Planet? They can replace furnaces that run on coal, oil, gas, and wood for 90% of industrial heat. Industrial heat is responsible for ~17% of all CO2 & pollution. Paper https://t.co/SESbvofrhh
https://t.co/1ohkUFGlRF
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New paper: China's current rate of Wind-Water-Solar (WWS) installations puts it on track to transition to 100% WWS across all energy sectors, thus eliminate air pollutants & GHGs from energy, by 2051 The U.S. & India won't get there until past 2130 https://t.co/zoRcoqTczK
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@elonmusk New paper: China's current rate of Wind-Water-Solar (WWS) installations puts it on track to transition to 100% WWS across all energy sectors, thus eliminate air pollutants & GHGs from energy, by 2051 U.S. & India won't get there until past 2130 https://t.co/eWfEJlUEgZ
New paper: China's current rate of Wind-Water-Solar (WWS) installations puts it on track to transition to 100% WWS across all energy sectors, thus eliminate air pollutants & GHGs from energy, by 2051 The U.S. & India won't get there until past 2130 https://t.co/zoRcoqTczK
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‘The biggest transformation in a century’: how California remade itself as a clean energy powerhouse "The Golden State’s clean energy use hit new highs in 2025. As the Trump admin abandons US climate initiatives, can California fill the void?" https://t.co/ulQ7VeqOZL
@guardian
theguardian.com
The Golden State’s clean energy use hit new highs in 2025. As the Trump administration abandons US climate initiatives, can California fill the void?
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China Sprints, Others Stroll: >On track to go 100% wind and solar by 2051 >China's 2025 renewables increase is 20X France's fastest (in 1981) nuclear output increase >China already produces 54% of the renewables the US will need to go 100% renewables by 2050
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How Fast are China, the U.S., and the World Moving to 100% Wind-Water-Solar? Video summarizing this paper https://t.co/Wtjr6pycFE
New paper: China's current rate of Wind-Water-Solar (WWS) installations puts it on track to transition to 100% WWS across all energy sectors, thus eliminate air pollutants & GHGs from energy, by 2051 The U.S. & India won't get there until past 2130 https://t.co/zoRcoqTczK
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We can thank "all-of-the-above" policies that promote carbon capture, direct air capture, bioenergy, and nuclear for part of the slow U.S. pace. What is clear is that 100% WWS after electrification is not only possible, but it is the only solution in the time we have.
New paper: China's current rate of Wind-Water-Solar (WWS) installations puts it on track to transition to 100% WWS across all energy sectors, thus eliminate air pollutants & GHGs from energy, by 2051 The U.S. & India won't get there until past 2130 https://t.co/zoRcoqTczK
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If you’re done with crowded gym saunas and want clean, private heat at home, start here. Tap through and take my sauna quiz and I’ll help you find the right model.
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3/4) Thus, policies focusing on clean, renewable energy alone can effectively speed a transition.
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2/4) China's clean-energy buildout is the fastest in history, 20x faster than France's peak nuclear buildout. China is already producing ∼54% of the WWS the US needs in 2050 to go 100% WWS across all energy sectors. Seven countries are transitioning faster than China.
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New paper: China's current rate of Wind-Water-Solar (WWS) installations puts it on track to transition to 100% WWS across all energy sectors, thus eliminate air pollutants & GHGs from energy, by 2051 The U.S. & India won't get there until past 2130 https://t.co/zoRcoqTczK
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EXW vs. FOB vs. DDP shouldn’t slow a shipment down. Download the Incoterms 2020 cheat sheet and get clarity in 2 minutes. → Click for free download
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NEW | As batteries become cheaper and more efficient, costs to store daytime solar are plummeting. Outside China and the US, it now only costs an additional $33/MWh to transform daytime solar into dispatchable nighttime energy 🔋 https://t.co/hnmLAm7Km5
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How Should We Power Datacenters? There are multiple clean, renewable ways. Let’s focus on what is useful and what works. https://t.co/iDPgMruSPj
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How Should We Power Datacenters? There are multiple clean, renewable ways. Let’s focus on what is useful and what works. https://t.co/iDPgMruSPj
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"New EV battery recycling process recycles 95% of nickel and cobalt with 99% purity." Meanwhile, fossil fuel is stuck at 0%. https://t.co/j9RlXZqcYc
interestingengineering.com
Researchers have developed an eco-friendly recycling tech that extracts 99 percent pure nickel and cobalt from waste batteries.
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