Lightnews — Scholar-powered news

Mark Z. Jacobson

@mzjacobson.bsky.social

4K followers 320 following 680 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 Media Videos Starter Packs

Mark Z. Jacobson @mzjacobson.bsky.social · 21h

Excited #StillNoMiraclesNeeded is closer to release. About techs that are useful and not for addressing climate, pollution & energy security

Preorder
www.waterstones.com/book/still-n...

Code OCTOBER25 at checkout for 25% off this week
@waterstones.bsky.social @universitypress.cambridge.org

Still No Miracles Needed by Mark Z. Jacobson | Waterstones

Buy Still No Miracles Needed by Mark Z. Jacobson from Waterstones today! Click and Collect from your local Waterstones or get FREE UK delivery on orders over £25.

www.waterstones.com

1 3 9

Mark Z. Jacobson @mzjacobson.bsky.social · 1d

And here's a longer version of why new nuclear is useless for addressing air pollution, climate, or energy security.

www.youtube.com/shorts/3O9Bl...

7 26

Reposted by Mark Z. Jacobson

Christian Breyer @christianonre.bsky.social · 1d

1/ New research @lut.fi reviews the #100RE systems literature doi.org/10.1016/j.rs... for the full range of technologies and trends for a sustainable energy transition based on 1067 articles from 1975 to 2023.

1 5 13

Reposted by Mark Z. Jacobson

Mark Z. Jacobson @mzjacobson.bsky.social · 2d

Picture perfect California weekend

195th & 196th days in 2025 with >100% WindWaterSolar for part of day

WWS peaked at 135% of demand both days

Gas down 19% v '24 & 37% v '23
Batteries up 57% v '24 & 205% v '23
Solar up 15% v '24 & 44% v '23

WWS 54.6% of demand v 46.7% in '23

14 55

Reposted by Mark Z. Jacobson, Dirk Pilat

Mark Z. Jacobson @mzjacobson.bsky.social · 3d

No reactor has been built in less than 17 years in North America and Europe and 12 years in the rest of the world, in the past 10 years (and the minimum before that was 10 years).

There is nothing else to discuss. It is useless.

Read the document before pretending you can build one.

1 4

Reposted by Mark Z. Jacobson

Mark Z. Jacobson @mzjacobson.bsky.social · 3d

If you are referring to the all of the above policy, it is a failed policy, and support for it in the past has been the reason why we are so far from a solution.

1 3

Mark Z. Jacobson @mzjacobson.bsky.social · 3d

Seven reasons why new small and large nuclear is useless, explained in 90 seconds

www.youtube.com/shorts/EKszV...

and all the details
web.stanford.edu/group/efmh/j...

7 reasons why new small & large nuclear is useless #nuclear #renewables #solar #wind #energy

YouTube video by Mark Z. Jacobson

www.youtube.com

6 43 84

Reposted by Mark Z. Jacobson, Juan Cole

Dominic Manchee @dpmanchee.bsky.social · 5d

Truely impressive - long term strategic investment in solar from China.

Contrast that with the chop and change policies of the West.

#Copernicus #Sentinel2 False Colour timelapse (Bands 8, 4, 3) 2015 - 2025 July scenes only. Imagery from Copernicus Browser link.dataspace.copernicus.eu/xzj0

1 6 14

Mark Z. Jacobson @mzjacobson.bsky.social · 5d

Why China Built 162 sq mi of Solar Panels on World’s Highest Plateau

China’s efforts contrast with the US, which is using its muscle to pressure countries to buy gas+oil+coal. China is investing in cheaper solar+wind+batteries+EVs to become the world’s supplier of RE
www.nytimes.com/2025/10/10/b...

Why China Built 162 Square Miles of Solar Panels on the World’s Highest Plateau

www.nytimes.com

8 25

Mark Z. Jacobson @mzjacobson.bsky.social · 5d

Much less than 1% of corn ethanol is for biophysics, and so what? That application doesn’t kill people through air pollution or damage the planet through global warming.

Reposted by Mark Z. Jacobson

Christian Breyer @christianonre.bsky.social · 5d

1/ New @lut.fi study shows that remote, sparsely populated #Lapland can transition to a #100RE system by 2050 doi.org/10.1016/j.en..., becoming a key Arctic energy hub with a very low LCOE of 28.2 €/MWh and can contribute to global defossilisation efforts

1 2 13

Reposted by Mark Z. Jacobson

Stanford Energy @stanfordenergy.bsky.social · 6d

In 2024, renewables added 582 GW (91% of new power) while nuclear added as much as renewables added in two days. "Nuclear costs are huge and rising," write Stanford's Mark Jacobson, Amory Lovins, and co-authors.

Read the full opinion piece: www.newcivilengineer.com/opinion/a-go...
#nuclear

7 13

Reposted by Mark Z. Jacobson

Mark Z. Jacobson @mzjacobson.bsky.social · 6d

In A Contest Between Solar & Ethanol, There Is One Clear Winner

cleantechnica.com/2025/10/09/i... @cleantechnica.bsky.social

In A Contest Between Solar & Ethanol, There Is One Clear Winner - CleanTechnica

The attacks on solar are inspired by ignorance and greed, not reality. Solar plus storage is the future; coal is the past.

cleantechnica.com

1 12 38

Reposted by Juan Cole

Mark Z. Jacobson @mzjacobson.bsky.social · 6d

California marching forward preparing for offshore wind, ignoring the incompetence of those slowing it down.

California to spend $42m on offshore wind ports
renews.biz/103569/calif...

renews.biz

4 29 180