Dr. Jessica N. Cross's Avatar

Dr. Jessica N. Cross

@jessicancross

Chemical Oceanographer. Climate recovery enthusiast. Hockey fan. Views are mine only. RT ≠ Endorsement. She/Her.

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24.10.2023
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Latest posts by Dr. Jessica N. Cross @jessicancross

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Net zero will cost less than fossil fuel price rise, UK climate adviser says Climate Change Committee report comes after days of turbulence in global energy markets

Achieving net zero by 2050 will cost less than a fossil fuel price shock according to @thecccuk.bsky.social, which advises governments on climate policy. By @attractamooney.bsky.social and @pickardje.bsky.social for the @financialtimes.com:

12.03.2026 19:34 👍 11 🔁 6 💬 0 📌 1
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If you follow ocean policy, you know that the Trump administration’s aggressive push for deep-sea mining is rapidly shaping up to be the defining ocean policy issue of this second term. As this… | M... If you follow ocean policy, you know that the Trump administration’s aggressive push for deep-sea mining is rapidly shaping up to be the defining ocean policy issue of this second term. As this head...

The Trump administration’s aggressive push for deep-sea mining is rapidly shaping up to be the defining ocean policy issue of this second term. I put a little primer over at LinkedIn, but here's a thread so you don't have to click through. www.linkedin.com/feed/update/... 🧵 1/4

11.03.2026 21:16 👍 19 🔁 15 💬 1 📌 3
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A New Theory About Why Biden’s Big Climate Law Failed Rob looks back on the political theory behind the Inflation Reduction Act with the University of Michigan’s Alexander Gazmarian.

NEW SHIFT KEY

Why didn’t the Inflation Reduction Act survive? I spoke to @agazmararian.bsky.social, the coauthor of a buzzy new paper on the subject, about why the law failed to create a coalition to protect it — and what that means for future US climate policy. heatmap.news/podcast/shif...

11.03.2026 12:59 👍 22 🔁 5 💬 4 📌 0
Research Team – Emily Grubert

🚨JOB ALERT🚨
Heya friends -- I'm looking for a postdoc! This time we're looking at the ethics of technology deployment for climate change mitigation. Full description in the link!

Quick details: CVs and cover letters to me by 1 April; $75k/year for up to 21 months; remote within the US is ok.

10.03.2026 17:07 👍 18 🔁 26 💬 0 📌 2
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Antarctic minerals in a warming world - Nature Climate Change Climate change will expose new ice-free areas of Antarctica. Now a study explores how climate change might spur the first ‘gold rush’ on the unexploited continent.

Antarctic minerals in a warming world

Climate change will expose new ice-free areas of Antarctica. Now a study explores how climate change might spur the first ‘gold rush’ on the unexploited continent.

www.nature.com/articles/s41...

10.03.2026 04:22 👍 28 🔁 11 💬 1 📌 3
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Your turn to power map! Your turn to power map! 1 Make a copy of this presentation. (One copy per group.) Shortcut to this slide: bit.ly/djspowermap

Tried power mapping with my big lecture class and was pleased with the way it went. The assignment is here if you're interested in the logistics of it. docs.google.com/presentation...

04.03.2026 21:23 👍 75 🔁 21 💬 5 📌 6
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NASA lost a lunar spacecraft one day after launch. A new report details what went wrong Why did a $72 million mission to study water on the moon fail so soon after launch? A new NASA report has the answer.

“Cheap failure is no good for anybody” is likely to enter my permanent lexicon.

08.03.2026 02:47 👍 1 🔁 0 💬 0 📌 0
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Thirty-six solutions to stabilize Earth’s climate An updated visual assessment tool can bridge the gap between climate research and political action

New perspective article on climate solutions by @hmcjeon.bsky.social

www.science.org/doi/10.1126/...

05.03.2026 23:33 👍 12 🔁 4 💬 1 📌 0
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Species Slowdown: Is Nature’s Ability to Self-Repair Stalling? When scientists recently analyzed hundreds of studies of ecosystems, they were surprised to see a marked slowing in the rate of species turnover. If new species don’t replace old ones, they say, ecosystems may have less flexibility to respond to habitat loss and climate change.

Scientists have long predicted ecosystems would shift in response to warming, with some species moving out and others moving in. But a major new study has found the rate of turnover is declining, suggesting nature may be losing its ability to self-repair.

05.03.2026 14:28 👍 18 🔁 15 💬 1 📌 2

I don’t know what mysterious spark Frankenformed into @theneedling.com when it got sprayed off the gum wall, but I am glad it attained sentience and decided to haunt us. This magnificent many-headed monster has a Venmo and a patreon: love it with me.

05.03.2026 04:17 👍 32 🔁 8 💬 1 📌 0
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The fate of fossil fuel systems in the "mid-transition" I talk with Emily Grubert about the hidden dangers of letting the free market manage the decline of our legacy energy infrastructure.

thanks to @volts.wtf for having me on to talk about coordinating and planning fossil phase out to build a better and actually decarbonized world. there‘s a lot we can do if we imagine a people-centered, service oriented future — and a LOT we miss if we don’t.

05.03.2026 02:45 👍 193 🔁 55 💬 6 📌 5
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With the Ocean Included, the Social Cost of Carbon Doubles - Eos A new calculation includes ocean ecosystems when assessing the monetary impact of climate change.

The social cost of carbon tells policymakers how much climate change is costing humanity. But until now, calculations disregarded the ocean almost entirely.

01.03.2026 14:55 👍 49 🔁 29 💬 0 📌 3
Image of an apple watch tied to a prototype wave buoy floating in water. The buoy is actually a pool chlorinator.

Image of an apple watch tied to a prototype wave buoy floating in water. The buoy is actually a pool chlorinator.

What can you do with all the sensors on your smartwatch? Here are some ideas to get you started.

- Build a Wave Buoy
- Measure Tidal Inundation
- Deploy as a stream gauge
- Classify road quality while bicycling

and 10 additional projects below.

www.tiniscientific.com/field-projects

04.03.2026 20:06 👍 22 🔁 7 💬 5 📌 3

Post a pic you took, no context, to bring some Zen to the feed

28.02.2026 15:26 👍 38 🔁 9 💬 5 📌 5
One scientist talking to two others.
"These days. If you're not a mad scientist, you're not paying attention."

One scientist talking to two others. "These days. If you're not a mad scientist, you're not paying attention."

Me. I'm a mad scientist.

(Paul Noth cartoons)

24.02.2026 17:32 👍 266 🔁 82 💬 4 📌 5

At the price of 1 apple watch + 99¢ for the app, this is an order of magnitude less than commercial instruments.

23.02.2026 21:33 👍 4 🔁 3 💬 0 📌 0
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Are we ready for a multipolar world of research? - LSE Impact The majority of research now takes place outside the Global North. How should research institutions globally position themselves in this new multipolar order?

🗣️"That the majority research publications have authors in Low and Middle-Income Countries is unprecedented."

#AcademicSky #ResearchPolicy

22.02.2026 10:39 👍 14 🔁 6 💬 0 📌 1

wow! kipnuk is voting to relocate their village

alaska doesn’t have reservations, but the native village of kipnuk is a federally recognized tribe

could you imagine your tribe having to vote on relocating to a safer area because of climate change? dozens of alaskan tribes have/will have to soon

09.02.2026 01:42 👍 38 🔁 17 💬 2 📌 2
The Beginning Comes After the End
Notes on a World of Change
by Rebecca Solnit
Rebecca Solnit offers a thrilling account of the sheer breadth and scale of social, political, scientific, and cultural change over the past three quarters of a century.

In this sequel to her enduring bestseller Hope in the Dark, Solnit surveys a world that has changed dramatically since the year 1960. Despite the forces seeking to turn back the clock on history, change is not a possibility; it is an inevitability.

The changes amount to nothing less than dismantling an old civilization and building a new one, whose newness is often the return of the old ways and wisdoms. In this rising worldview, interconnection is a core idea and value. But because the transformation is obscured within a longer arc of history, its scale is seldom recognized.

While the white nationalist and authoritarian backlash drives individualism and isolation, this new world embraces antiracism, feminism, a more expansive understanding of gender, environmental thinking, scientific breakthroughs, and Indigenous and non-Western ideas, pointing toward a more interconnected, relational world.

The Beginning Comes After the End Notes on a World of Change by Rebecca Solnit Rebecca Solnit offers a thrilling account of the sheer breadth and scale of social, political, scientific, and cultural change over the past three quarters of a century. In this sequel to her enduring bestseller Hope in the Dark, Solnit surveys a world that has changed dramatically since the year 1960. Despite the forces seeking to turn back the clock on history, change is not a possibility; it is an inevitability. The changes amount to nothing less than dismantling an old civilization and building a new one, whose newness is often the return of the old ways and wisdoms. In this rising worldview, interconnection is a core idea and value. But because the transformation is obscured within a longer arc of history, its scale is seldom recognized. While the white nationalist and authoritarian backlash drives individualism and isolation, this new world embraces antiracism, feminism, a more expansive understanding of gender, environmental thinking, scientific breakthroughs, and Indigenous and non-Western ideas, pointing toward a more interconnected, relational world.

I wrote a book! It's trickling out, already in some bookstores. And I'm doing a bunch of events for it (see below). More info on book in alt text.

22.02.2026 16:36 👍 693 🔁 115 💬 17 📌 6
Post image

#RECCAP2 paper alert, Jemma Wadham led the polar chapter, summarizing knowns and (large) unknowns of carbon stocks and fluxes from ice sheets to land fringes, fjords, 🌊 oceans and sediments.🧪 Excellent reference starting point for future work.
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
@awi.de

22.02.2026 12:21 👍 18 🔁 9 💬 0 📌 1
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Revealed: 10 new insights in climate science Each year, the world’s leading climate scientists evaluate the most critical evidence on how our planet is changing. Their assessments draw heavily on data from Earth-observing satellites – and the la...

”The planet’s energy balance is drifting further out of alignment, ocean warming is now accelerating, and the land’s capacity to absorb carbon is declining, along with other troubling trends.”

#ClimateHeating

www.esa.int/Applications...

19.02.2026 08:58 👍 93 🔁 50 💬 1 📌 2
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Trump's Climate Supercomputer Plans Threaten US Insurance Market: Actuaries A new letter from the American Academy of Actuaries draws a direct line between the planned dismantling of NCAR and higher homeowners insurance costs for US consumers.

The American Academy of Actuaries warns that dismantling NCAR would degrade the catastrophe models insurers depend on to price climate risk—driving up premiums and threatening coverage availability nationwide.
"Uncertainty carries a positive cost."
www.riskmarketnews.com/trumps-clima...

16.02.2026 15:49 👍 212 🔁 156 💬 3 📌 19
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‘There is no money’: As carbon markets collapse, what happens to the forests they promised to protect? After it was found most offsets did not represent real carbon reductions, the money dried up. But successful schemes such as Kasigau in Kenya now face a stark future
16.02.2026 15:17 👍 0 🔁 0 💬 0 📌 0

And these kids decided, on their own, to play a benefit show for families impacted by the surge. At that first show they had hoped to raise a couple thousand dollars. Their families and friends came to Minneapolis and packed the house. They ended up raising over 10 grand. (3/?)

16.02.2026 00:51 👍 2283 🔁 132 💬 4 📌 6
Pile of colorful stickers, some of which I have carefully hoarded for longer than the adhesive is probably good for

Pile of colorful stickers, some of which I have carefully hoarded for longer than the adhesive is probably good for

Still doing it

14.02.2026 20:26 👍 2 🔁 0 💬 1 📌 0
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Scientists no Longer Find Twitter Professionally Useful, and have Switched to Bluesky Synopsis. Social media has become widely used by the scientific community for a variety of professional uses, including networking and public outreach. For

Bluesky is the new science Twitter, new study by @whysharksmatter.bsky.social and Julia Wester concludes!

"Results show that for every reported professional benefit that scientists once gained from Twitter, scientists can now gain that benefit more effectively on Bluesky than on Twitter."

13.02.2026 22:08 👍 6792 🔁 2202 💬 98 📌 186

But wait, there's more

go.bsky.app/4wMsfX4

11.02.2026 14:38 👍 56 🔁 25 💬 4 📌 0

Happy International Day of Women and Girls in Science!

Follow these awesome women ocean scientists, many of whom I'm proud to call colleagues and delighted to call friends.

🧪🦑🌍🐟

go.bsky.app/7MdiLgo

11.02.2026 14:38 👍 203 🔁 95 💬 2 📌 6
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Congress rejected Trump’s spending plans. Making sure its own budget is spent is the next challenge. Congress largely ignored the White House’s budget, maintaining funding for important energy programs this year. But are agencies adequately staffed to get the money out the door, and will Russell Voug...

My latest at Quitting Carbon: Congress rejected the White House’s budget, maintaining funding for important energy programs this year. But are agencies adequately staffed to get the money out the door, and will Russ Vought allow the money to be spent? www.quittingcarbonmedia.com/congress-rej... 🔌💡

11.02.2026 17:51 👍 2 🔁 3 💬 0 📌 0
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St. Petersburg begins accepting bids for study about ditching Duke Energy The request for proposals lays out a concrete timeline to what happens next.

Public power growing in Florida, it's more likely than you think

www.tampabay.com/news/environ...

11.02.2026 17:38 👍 17 🔁 7 💬 0 📌 0