Mark Z. Jacobson
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mzjacobson.bsky.social
Mark Z. Jacobson
@mzjacobson.bsky.social
4.2K followers 340 following 800 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 · 6h
First, they are called wind turbines, not windmills.

Second, China produces enough electricity from wind to power 53% of U.S. and enough wind+solar to power >102% of the U.S. today.

pubs.rsc.org/en/content/a...

Trump says China has no windmills
www.msn.com/en-us/money/...
Projections of when each of 150 countries May eliminate air pollution and carbon emissions from all energy
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 t...
pubs.rsc.org

mzjacobson.bsky.social
Mark Z. Jacobson @mzjacobson.bsky.social · 9h
No, imports are 58% Wind-Water-Solar, which is higher than California's average.

mzjacobson.bsky.social
Mark Z. Jacobson @mzjacobson.bsky.social · 10h
How Has California Eliminated 38 Percent of its Gas Use for Electricity, and has this affected its electricity prices?

youtu.be/LaPnleJ-vRM?...
How Has California Eliminated 38 Percent of its Gas Use for Electricity in Two Years?
YouTube video by Mark Z. Jacobson
youtu.be

mzjacobson.bsky.social
Mark Z. Jacobson @mzjacobson.bsky.social · 10h
Already 4 days in 2026 (36%) with 100% WindWaterSolar on CA's main grid for part of the day. Almost double the number of hours of 100% WWS v 2025 so far.

Gas down 69% vs '23
WWS up 25% v '23
Batteries up 332% v '23

Reposted by Mark Z. Jacobson

lyndalovon.bsky.social
lynda williams @lyndalovon.bsky.social · 1d
This promises to be an excellent event in person or online! If you register for it, even if you can’t make it, you could get a link to the video!! #NoNukes #NukeSky

@mzjacobson.bsky.social

REGISTER HERE:
us02web.zoom.us/webinar/regi...

Reposted by Mark Z. Jacobson

mzjacobson.bsky.social
Mark Z. Jacobson @mzjacobson.bsky.social · 2d
Another record 100% WindWaterSolar day in CA

Fri Jan 9, battery discharging a record 48.14 GWh (8.57% of demand) & battery charging a record 53.96 GWh

Discharging equiv to 12.04 GW of 4-h bat but spread over most of night, showing how 4-h batteries provide long-duration storage

Reposted by Mark Z. Jacobson

Reposted by Juan Cole

mzjacobson.bsky.social
Mark Z. Jacobson @mzjacobson.bsky.social · 3d
Wind is an international savior of lives from pollution, source of energy security, cost reducer, and land-use reducer.

Azerbaijan Launches Largest Wind Power Plant in Caucasus (240 MW)

astanatimes.com/2026/01/azer...
Azerbaijan Launches Largest Wind Power Plant in Caucasus - The Astana Times
Azerbaijan Launches Largest Wind Power Plant in Caucasus
astanatimes.com

mzjacobson.bsky.social
Mark Z. Jacobson @mzjacobson.bsky.social · 3d
Growth of rooftop solar PV in California - people use rooftop PV, avoiding their need for grid electricity.

mzjacobson.bsky.social
Mark Z. Jacobson @mzjacobson.bsky.social · 3d
Equal mix of wind, solar, and hydro propels California main grid to a record start to 2026 and its first 100% WWS day of the year.

Gas down 68% vs '23
Demand down 3% v '23
Batteries up 270% v '23
WWS up 25% v '23

Reposted by Mark Z. Jacobson

doctorvive.bsky.social
Dr. Genevieve Guenther (she/they) @doctorvive.bsky.social · 3d
I am going to whip this article out from now on any time someone says to me "the energy transition IS happening, just not fast enough."

Honey, "just not fast enough" doesn't begin to describe the situation. If we don't transition before 2148, we're all going to be dead.

Reposted by Juan Cole

mzjacobson.bsky.social
Mark Z. Jacobson @mzjacobson.bsky.social · 3d
China is installing renewable generation at a rate “almost two orders of magnitude the rate it is installing new nuclear,” and “is also not distracted much by carbon capture, direct air capture, blue hydrogen, biofuels, or biomass.”

mzjacobson.bsky.social
Mark Z. Jacobson @mzjacobson.bsky.social · 3d
U.S. would reach 100% renewable energy across all sectors by 2148 at recent pace-China by 2051

Main barriers to the US achieving a buildout as fast as China’s “are social and political, not technical or economic”

pv-magazine-usa.com/2026/01/09/u...

Paper
pubs.rsc.org/en/content/a...
U.S. would reach 100% renewable energy by 2148 at recent pace
China is outpacing the U.S. toward 100% renewables for all energy uses and is on track to reach that standard by 2051, versus 2148 for the U.S., projects a study of 150 countries by Stanford professor...
pv-magazine-usa.com

Reposted by Mark Z. Jacobson

Reposted by Mark Z. Jacobson

Reposted by Mark Z. Jacobson

Reposted by Mark Z. Jacobson

mzjacobson.bsky.social
Mark Z. Jacobson @mzjacobson.bsky.social · 6d
Wind and solar were the #1 and #2 electricity-generating sources in Germany in 2025

Solar surpassed lignite coal to become #2

solarquarter.com/2026/01/06/s...
Solar And Wind Delivers Over 55% Of Germany’s Electricity Generation In 2025 – Fraunhofer ISE
Germany’s 2025 electricity mix sees solar and wind lead generation, renewables reach 55.9 percent, output stagnates, batteries grow, imports decline.
solarquarter.com

Reposted by Mark Z. Jacobson

Reposted by Mark Z. Jacobson

mzjacobson.bsky.social
Mark Z. Jacobson @mzjacobson.bsky.social · 8d
Okay, but after you stated two wrongs don't make a right, you state that "All power sources have enormous impacts..." Do you see how that can be confusing? I might suggest deleting that if you don't want to be misinterpreted.

Reposted by Mark Z. Jacobson