If CO2 emissions go to zero in 2050 (top), the sinks (green) will bring atmospheric CO2 back down (middle), & temperature will stabalise at ~1.7°C (bottom). Going to zero today will keep us <1.5°C Constant emissions leads to 2.6°C, rising rapidly thereafter. www.nature.com/articles/s41...

The US #electricity system is under stress, from growing demand & complex operating conditions. Join @nationalacademies.org for a webinar series exploring technologies & capabilities for improving reliability and resilience. Our first event on hardening the T&D system is tomorrow! bit.ly/42yNIF5

📢 Submissions are now open for the U.S. Climate Collection, a joint @theAGU + @ametsoc initiative. This special collection will publish U.S.-focused climate assessment science that’s free to read, ensuring rigorous, accessible science informs decisions for years to come. 🔗 buff.ly/1tHUSLC

A new report by the prestigious US National Academy of Sciences concludes that the EPA’s 2009 endangerment finding was accurate, has stood the test of time, and is now reinforced by even stronger evidence:

Our new report explores the effects of greenhouse gas emissions on the U.S. health and welfare. Read more: nap.nationalacademies.org/catalog/2923...

If you want to see what a best-in-class climate scientist with a lens on geopolitics and energy can do in the financial sector - read Sarah Kapnick's new report on energy system politics for JP Morgan. A few of my favorite figures below 🧵1/ www.jpmorgan.com/content/dam/...

Growing connections of AI/DC have now reached a level of complexity warranting a NERC alert, citing "rapid, major swings in load, experienced both in typical operations as well as in response to grid disturbances.” = more data + modeling needed. www.nerc.com/pa/rrm/bpsa/...

So many companies do business in CA, this is a big deal, indeed. Investors can’t manage (at least well) what they cannot manage.

Two new papers find renewables are good insurance (they stabilize electricity price volatility in welfare improving ways) www.nature.com/articles/s41... www.sciencedirect.com/science/arti... 🔌💡

re: cow’s methane-laced burps, viable emissions reduction solutions are scarce. now though, forays into methane destruction - and even atmospheric removal - are gaining traction. i explore one pathway, from Ambient Carbon, here:

Next week begins our @nationalacademies.org 3-part webinar series on greenhouse gas removals! Experts will cover research priorities, governance challenges, and practical applications. Learn more and RSVP here: www.nationalacademies.org/our-work/atm...

Nice article about NASEM review of the endangerment finding by @insideclimatenews.org National Academies Will Review Endangerment Finding Science insideclimatenews.org/news/0708202...

It’s a signpost that grid planning + op are entering a new paradigm. System operators are rethinking how to maintain reliability in a BPS where inertia is no longer free and stability must be actively engineered. spectrum.ieee.org/grid-scale-b...

Timely:

I love renewable energy tech because it's either "use quantum mechanics and semiconductor physics to leverage the photoelectric effect" or "put three spinny things on a stick"

Nearly half the US will wilt under hot, sticky conditions through the bulk of the week as temperatures and humidity soar from Chicago to NYC and New Orleans, boosting power demand and raising health risks.

It’s hard to find a trend in the electricity system right now that *doesn’t* point to near-term rate hikes if not a broad affordability crisis. That’s a serious problem for climate policy, but also the American economy writ large. I wrote about it: heatmap.news/politics/ele...

New report finds, yet again, that "The United States is failing to build the high-voltage transmission infrastructure needed to support the nation’s surging electricity demand and growing strategic industries."

Me in UtilityDive today re: a new $10bn data center announced for NC (the same is true for most states) 🔌💡 www.utilitydive.com/news/growing...

When it comes to Texas weather, I look to @theeyewallwx.bsky.social to cut through the nonsense. @mattlanza.bsky.social knows his business on this analysis of the tragic TX flash flooding.

REPEAT Project just completed our rapid analysis of the impacts of the Senate-passed version of the One Big "Beautiful" Bill (OBBB), which the House is considering now, on the US energy sector and emissions. Still working up full report, but here is a sneak peak... 🔌💡 🧵

This looks depressing, but there are reasons to be optimistic. Not naive, but truly hopeful. Renewable energy technologies are cheap, and global GHG emissions are flattening. We never had a better chance to get this done. But a lot of work remains, and we cannot stop.

How much could clean electricity adoption change without tax credits? Existing modeling suggests that annual additions could slow by roughly half for many technologies to 2035. But these studies omit recently proposed excise taxes, which could further reduce project deployment.

This is a nice summary of the Spanish grid operator's reports on the May Iberian blackout. As with any big event like this, there were many interdependent causes, but the TL;DR is that 3 nuclear and 7 gas plants failed to provide the voltage control that the grid operator contracted them to provide.

Are you a grad student or early-career STEM professional interested in experiencing careers in #sciencepolicy? Apply for the 2026 #MirzayanFellowship @nationalacademies.org in #DC Mar 2–May 22! I was a fellow & am happy to answer ?'s via DM! Apply by Aug 20, 2025: mirzayanfellow.nas.edu #energysky

Everything is melting and we're not doing much of anything about it www.theatlantic.com/science/arch...

Iberian blackout: not inertia, but lack of procurement of voltage regulation (reactive power absorption) by TSO to blame for spreading power outage, according to first government report. Plausible explanation for the scale of the incident, less for the root cause. www.reuters.com/business/ene...

Tomorrow at 12:30pm ET we're hosting a #ClimateConversations on reducing and removing #MethaneEmissions from the air we breathe. 🔗 Register now: events.nationalacademies.org/45131_06-202...

New research found that the rate that homeless people visited an emergency department for heat-related illnesses was 27 times higher than that for other Americans. As the climate warms, homeless populations have faced increasing dangers from exposure to extreme heat.

🌍 Join us for a #ClimateConversation on what approaches are available to reduce & remove #MethaneEmissions from the air.

"American students benefit from building relationships and ultimately businesses with international students. We hope that the benefit international students provide to America’s robust economy is preserved and protected."

Excited to be speaking about grid modernization on this panel at the 2025 AMS Joint Washington Forum & Summer Community Meeting! If you're attending, be sure to stop by Wednesday morning to catch this discussion on what's needed for a secure, reliable, and low-cost energy future.

Excited to be speaking about grid modernization on this panel at the 2025 AMS Joint Washington Forum & Summer Community Meeting! If you're attending, be sure to stop by Wednesday morning to catch this discussion on what's needed for a secure, reliable, and low-cost energy future.

Congratulations to the finalists of the 2024 Cozzarelli Prize for their paper titled “Climate migration amplifies demographic change and population aging.” Explore their award-winning research: www.pnas.org/doi/full/10....

Our children will face unprecedented exposure to weather extremes. Our paper led by Luke Grant and @wimthiery.bsky.social published in @nature.com shows that the generation of our children and grandchildren will be exposed to a lot more weather extremes than ours. www.nature.com/articles/s41...

The thought experiment was right: we have invented a paperclip machine.

getting the grid back up and running in portugal and spain after today's blackouts will be "like assembling some hellishly complicated IKEA furniture.” my colleague @natashabernal.bsky.social reports for @wired.com (feat @ketanjoshi.co !)

Delighted to share the Strategic Action Plan from the 9-state Northeast States Collaborative on Interregional Transmission Planning: energyinstitute.jhu.edu/wp-content/u.... #energysky #HopkinsEnergy

🚨 New paper drop Must-read by a stellar group incl. @mliebreich.bsky.social, @iain-staffell.bsky.social H2 isn’t silver bullet it’s made out to be. It has a role—just not everywhere. Best bets: parts of industry, long-haul, storage Not useful: home heating, cars www.nature.com/articles/s44...

Interesting research! Human beings are, by nature, extremely bad at noticing & appreciating the significance of gradual change over time. We notice binaries, on/offs, either/ors. "Winter temperatures gradually rising." - no one cares "Lake X used to freeze over; now it doesn't." - people notice

treat me like a sunk cost with vendor lock-in tied to value-add consumables, that’s that me Nespresso

“Improvements since 2007 reduced costs by 19%, averaging $5 billion per hurricane. This exceeds the annual budget for all federal weather forecasting.” As a field, we have come such a long way, and there’s still a long way to go. THE WORK WE DO TO SAVE LIVES AND PROPERTY MATTERS! Full stop.

Today at Noon ET: the final webinar in this series, on supply chains for the future electricity system ⛓️💡 The conversation will be moderated by Mike Howard (CEO Emeritus, EPRI) and you can register here: www.nationalacademies.org/event/44653_...

Today at Noon ET: the final webinar in this series, on supply chains for the future electricity system ⛓️💡 The conversation will be moderated by Mike Howard (CEO Emeritus, EPRI) and you can register here: www.nationalacademies.org/event/44653_...

Some stats from 100 days in on congestion pricing: - Complaints about car-honking are down 70% - The Holland Tunnel has 65% fewer delays at rush hour; time to get thru it is down 48% - 6 million fewer cars - Half as many traffic-related injuries - 1.5 million more visitors to BIDs year over year

Happy Neil Day to those who celebrate

It is shocking indeed, and we did not realize the extent of this when mapping the digital traces of this misinformation backlash (link to our study). www.thelancet.com/journals/lan...

Help us connect with others in scientific research, education, engagement and philanthropy! go.bsky.app/RjAp9Jv