Mark Z. Jacobson
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mzjacobson.bsky.social
Mark Z. Jacobson
@mzjacobson.bsky.social
4.1K followers 330 following 720 posts

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/Jacobson .. more

Videos

Mark Zachary Jacobson is a professor of civil and environmental engineering at Stanford University and director of its Atmosphere/Energy Program. He is also a co-founder of the non-profit, Solutions Project. .. more

Environmental science 27%
Public Health 16%
Posts Replies Media Videos

mzjacobson.bsky.social
Mark Z. Jacobson @mzjacobson.bsky.social Β· 1d
Wind is now the largest single electricity generator in 7 U.S. states (for the year from Oct 1 '24 - Sep 30, '25):

SD, IA, KS, WY, OK, ND, NM

Providing up to 85% of demand (in SD)

mzjacobson.bsky.social
Mark Z. Jacobson @mzjacobson.bsky.social Β· 1d
New EIA data

From Oct 1, '24-Sep 30, '25, 13 states generated 49.7-121% of their electricity demand with WWS

Wind was #1 overall generator 8 in states (SD, IA, WY, KS, ME, NM, ND, OK)

Hydro #1 in 3 (MT, WA, OR)

Solar #1 overall in CA and #1 WWS generator in NV

web.stanford.edu/group/efmh/j...

mzjacobson.bsky.social
Mark Z. Jacobson @mzjacobson.bsky.social Β· 1d
For the past year (Oct 1, '24-Sep 30, '25), South Dakota has generated enough WindWaterSolar to supply 121% of demand:

85% Wind
33% Water
3% Solar
-
121% Total

Montana haΘ™ generated 98% WWS

13 states have generated 49.7-121%% WWS

US avg: 25.1%

web.stanford.edu/group/efmh/j...

mzjacobson.bsky.social
Mark Z. Jacobson @mzjacobson.bsky.social Β· 1d
Breaking-New @EIAgov data Oct 1 '24-Sep 30 '25

More WindWaterSolar means much cheaper electricity

Of the 12 states with the most (50-121%) WWS supply as a % of demand, 11 have electricity prices 1.9-5.2 c/kWh below the US average

web.stanford.edu/group/efmh/j...

web.stanford.edu/group/efmh/j...

mzjacobson.bsky.social
Mark Z. Jacobson @mzjacobson.bsky.social Β· 2d
The fact the first thing listed to advance "American energy dominance" is vaporware (nuclear fusion) illustrates how out of touch @Energy is

Meanwhile, China in 2025 has already installed enough WindWaterSolar to power 55% of the US in 2050 for all energy purposes.

x.com/ENERGY/statu...
U.S. Department of Energy on X: "Energy Department Launches β€˜Genesis Mission’" / X
Energy Department Launches β€˜Genesis Mission’
x.com

Reposted by Mark Z. Jacobson, Michael E. Webber

mzjacobson.bsky.social
Mark Z. Jacobson @mzjacobson.bsky.social Β· 3d
Less and less solar as the year winds down, but still 100% WindWaterSolar for part of the 218th day this year (67% of all days)

53% of all '25 demand supplied by in-state WWS (v 49.7% in '24 & 45.7% in '23)

Gas down 16% v '24 & 37% v '23
Demand down 2.1% v '24 & 1.4% v '23 due to growth of roof PV

mzjacobson.bsky.social
Mark Z. Jacobson @mzjacobson.bsky.social Β· 3d
China’s diesel trucks are shifting to electric

"In 2020, nearly all new trucks in China ran on diesel.

...electric trucks will reach nearly 46% of new sales this year and 60% next year."

www.hotsr.com/news/2025/no...
China’s diesel trucks are shifting to electric | Hot Springs Sentinel Record
ANIRUDDHA GHOSAL
www.hotsr.com

mzjacobson.bsky.social
Mark Z. Jacobson @mzjacobson.bsky.social Β· 4d
Here are a few

web.stanford.edu/group/efmh/j...

web.stanford.edu/group/efmh/j...

web.stanford.edu/group/efmh/j...

web.stanford.edu/group/efmh/j...
web.stanford.edu

Reposted by Mark Z. Jacobson, Juanjo Medina

earthsciinfo.bsky.social
Joseph D. Ortiz @earthsciinfo.bsky.social Β· 5d
As @mzjacobson.bsky.social says, there are no miracles needed. We have almost all the tech required to address human-caused climate change. But @doctorvive.bsky.social is right. We need the courage to deploy those technologies as rapidly as possible. πŸ§ͺπŸ”ŒπŸ’‘β˜€οΈπŸ’¨πŸ’§πŸ”‹ www.iea.org/reports/worl...
Setting the scene – World Energy Outlook 2025 – Analysis - IEA
World Energy Outlook 2025 - Analysis and key findings. A report by the International Energy Agency.
www.iea.org

Reposted by Juan Cole

mzjacobson.bsky.social
Mark Z. Jacobson @mzjacobson.bsky.social Β· 5d
Why carbon capture increases CO2, air pollution, fossil mining, fossil infrastructure, energy costs, and social costs.

CC is neither needed or helpful.

The Myth of Carbon Capture and Storage
Podcast with @jennyyeremiy.bsky.social

www.youtube.com/watch?v=6X5M...
The Myth of Carbon Capture and Storage: Justifying New Fossil Fuel Development
YouTube video by The Gravity Well with Jenny Yeremiy
www.youtube.com

Reposted by Mark Z. Jacobson

jennyyeremiy.bsky.social
Jenny Yeremiy, P. Geoph πŸͺΆπŸŒΏπŸ‡΅πŸ‡ΈπŸ‡³πŸ‡¬πŸ‡±πŸ‡§πŸ‡¨πŸ‡¦ @jennyyeremiy.bsky.social Β· 6d
Stoked to have followed up thisπŸ‘‡clip from @mzjacobson.bsky.social with a full interview! πŸ‘πŸ»

No MLA & Minister Nicolaides, it is not good to support fraud, 🎧 listen to Professor Jacobson. πŸ™πŸ»πŸ€
#abpoli #CCSscam #UCPlies
www.youtube.com/live/6X5M6bu...