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Mark Z. Jacobson Profile
Mark Z. Jacobson

@mzjacobson

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Following
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671
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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
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@mzjacobson
Mark Z. Jacobson
6 years
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. The only way to do any of these is with #WindWaterSolar.
@mzjacobson
Mark Z. Jacobson
7 years
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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@mzjacobson
Mark Z. Jacobson
1 day
RT @mzjacobson: Data show 10 of the 11 states with highest % RE (50-121%) on the grid have electricity prices >1.9 c/kWh below US avg. If….
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@mzjacobson
Mark Z. Jacobson
1 day
RT @mzjacobson: Fossil gas is down 23% v '24 & 42% v '23.Solar up 18.2% v '24 & 47.4% v '23 .Wind up 2.9% v '24 & 3.5% v '23 .WWS up 6.7% v….
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@mzjacobson
Mark Z. Jacobson
1 day
RT @mzjacobson: This is just what we need, but even faster. Vietnam setting bans on gasoline motorcycles next year (in downtown Hanoi), fo….
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electrek.co
Vietnam is taking bold steps to clean up its streets – and quiet them down. Starting next summer, the major...
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@mzjacobson
Mark Z. Jacobson
1 day
RT @mzjacobson: Everyone is probably bored of me posting California winning almost every day against the pro-fossil & let's-do-everything-e….
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@mzjacobson
Mark Z. Jacobson
1 day
RT @mzjacobson: This was also the 160th of 205 days (78%) in 2005 with >100% WindWaterSolar. WWS has exceeded 100% of demand an avg of 4.73….
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@mzjacobson
Mark Z. Jacobson
2 days
RT @mzjacobson: Gasoline, diesel, and all other petroleum products plus fossil gas and oil (all wasteful energy) should and will be shunned….
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@mzjacobson
Mark Z. Jacobson
2 days
Fossil gas is down 23% v '24 & 42% v '23.Solar up 18.2% v '24 & 47.4% v '23 .Wind up 2.9% v '24 & 3.5% v '23 .WWS up 6.7% v '24 & 15.9% v '23 .Batteries up 64% v 2'4 & 213% v '23 . WWS would produce even more (wiping out more gas) but big hydro is down 10.6% v '24 & 12.3% v '23.
@mzjacobson
Mark Z. Jacobson
2 days
This was also the 160th of 205 days (78%) in 2005 with >100% WindWaterSolar. WWS has exceeded 100% of demand an avg of 4.73 h/day among all 205 days. WWS has met an avg of 57.4% of demand in '25, vs 53.1% in '24 and 48.8% in '23, suggesting CA should be 100% WWS 24/7/365 in <10 y.
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@mzjacobson
Mark Z. Jacobson
2 days
This was also the 160th of 205 days (78%) in 2005 with >100% WindWaterSolar. WWS has exceeded 100% of demand an avg of 4.73 h/day among all 205 days. WWS has met an avg of 57.4% of demand in '25, vs 53.1% in '24 and 48.8% in '23, suggesting CA should be 100% WWS 24/7/365 in <10 y.
@mzjacobson
Mark Z. Jacobson
2 days
Everyone is probably bored of me posting California winning almost every day against the pro-fossil & let's-do-everything-except-what-is-actually-useful crowd, but I can't help if every day results in a new first. On 7/24 solar on the CAISO grid spilled a record peak 21.71 GW
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@mzjacobson
Mark Z. Jacobson
2 days
Everyone is probably bored of me posting California winning almost every day against the pro-fossil & let's-do-everything-except-what-is-actually-useful crowd, but I can't help if every day results in a new first. On 7/24 solar on the CAISO grid spilled a record peak 21.71 GW
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@mzjacobson
Mark Z. Jacobson
2 days
RT @mzjacobson: China begins construction of world's largest hydropower station, 60 GW, almost three times the size of Three-Gorges station….
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powermag.com
China has started construction of what would be the world's largest hydropower dam. Chinese Premier Li Qiang on July 19 led a ceremony marking
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@mzjacobson
Mark Z. Jacobson
3 days
Gasoline, diesel, and all other petroleum products plus fossil gas and oil (all wasteful energy) should and will be shunned, just like cigarettes because of the death, destruction, and noise they cause. Public nuisances.
@mzjacobson
Mark Z. Jacobson
3 days
This is just what we need, but even faster. Vietnam setting bans on gasoline motorcycles next year (in downtown Hanoi), followed by cars. Ultimately, 72 million gasoline motorcycles will be banned, plus gasoline cars.
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@mzjacobson
Mark Z. Jacobson
3 days
This is just what we need, but even faster. Vietnam setting bans on gasoline motorcycles next year (in downtown Hanoi), followed by cars. Ultimately, 72 million gasoline motorcycles will be banned, plus gasoline cars.
Tweet card summary image
electrek.co
Vietnam is taking bold steps to clean up its streets – and quiet them down. Starting next summer, the major...
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@mzjacobson
Mark Z. Jacobson
3 days
RT @mhrzmomeni_fa: #مقاله اخیر من در یکی از مجموعه ژورنال #نیچر (Scientific Reports, #Nature). در #این_مقاله افتخار همکاری با پروفسور مارک….
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@mzjacobson
Mark Z. Jacobson
3 days
Those promoting CC+DAC (thus blue H2 & electro-fuels) pretend no energy diff between fossils & electrification, so no prob continuing fossils. But by keeping fossils, they prevent big demand decreases & increase CO2 by using RE to run CC/DAC, preventing RE from replacing fossils.
@mzjacobson
Mark Z. Jacobson
3 days
So, why would anyone make wasteful energy even more wasteful by adding carbon capture equipment to it or spending on direct air capture rather than simply using efficient energy?. There is no good answer to that question.
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@mzjacobson
Mark Z. Jacobson
3 days
So, why would anyone make wasteful energy even more wasteful by adding carbon capture equipment to it or spending on direct air capture rather than simply using efficient energy?. There is no good answer to that question.
@mzjacobson
Mark Z. Jacobson
3 days
My new name for fossil fuels:. Wasteful energy. and for electricity provided by WindWaterSolar. Efficient energy. Why? It's simple. Using WWS electricity for the same purposes as fossil fuels reduces end-use energy demand 54% worldwide.
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@mzjacobson
Mark Z. Jacobson
3 days
My new name for fossil fuels:. Wasteful energy. and for electricity provided by WindWaterSolar. Efficient energy. Why? It's simple. Using WWS electricity for the same purposes as fossil fuels reduces end-use energy demand 54% worldwide.
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@mzjacobson
Mark Z. Jacobson
3 days
RT @ChristianOnRE: 1/ New research @UniLUT @Philipp Diesing @RL_Kolleg compares direct electrification and green h….
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@mzjacobson
Mark Z. Jacobson
3 days
RT @mzjacobson: @MTimC1 @EnergyNews_Biz Carbon capture increases CO2.Carbon capture increases air pollution.Carbon capture increases fossil….
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