Dr. Stephanie Roe

There is No Scientific Justification to Revoke the Endangerment Finding The U.S. EPA's decision to repeal the Endangerment Finding will limit the government's ability to regulate emissions of carbon dioxide and other greenhouse gases under the Clean Air Act.

As I say here, there is no scientific justification to revoke the engagement finding. In fact, over the last 15+ yrs, the evidence of how climate change affects our health has only grown. Higher risk of allergies, dementia, fertility, heart disease, and death: that’s what’s on the line. @nature.org

In what is arguably the World's Best News, it looks like India is going to spend much less time in the "fossil fuel detour" than the US or China. It is moving much more directly to clean electrification.
ember-energy.org/latest-insig...

Record heat is the new normal, says WWF's @stephanieroe.bsky.social, as 2025 ranks among the three hottest years ever. The good news? Climate solutions are breaking records too. Rapid emissions cuts are possible. More here: t.co/Ph4h3mU6i8

High Seas Treaty enters into force: A milestone for ocean conservation The High Seas Treaty, formally known as the Agreement on Biodiversity Beyond National Jurisdiction (BBNJ), enters into force on 17 January 2026.

A smidgeon of good news for the ocean.

Adaptation is going to be a key area of negotiation at #COP30 in Belem next week, including landing on 100 indicators to track progress on adapting to climate change under the GGA

Ahead of COP kicking off, I took a look at the GGA and how experts whittled down the list of 10k indicators to just 100

New starter pack with @ipcc.bsky.social #AR7 scientists (bureau, authors, REs)! Full list: apps.ipcc.ch/report/autho...
For SR cities scientists see separate starter pack!
@dianaurge.bsky.social @sherilee.bsky.social @siir-kilkis.bsky.social @janfuglestvedt.bsky.social
go.bsky.app/2FuXb3Y

160 scientists, 23 countries, 1 report: The Global Tipping Points Report 2025, together with @exeter.ac.uk, highlights mounting risks across Earth’s systems, from melting glaciers & ice fields to slowing ocean currents, ice sheets & rainforests under pressure. Watch now👇
👉global-tipping-points.org

Overshoot podcast – a world beyond 1.5C The world missed its goal for tackling climate change. What happens next? In this four-part documentary series, we explore the huge challenges that come from 1.5°C overshoot. We meet the people with…

Recommended listen: The Strategic Climate Risks Initiative, in partnership with Planet B Productions, has released a four-part podcast series exploring what will happen if global warming exceeds 1.5C.

Renewables have overtaken coal in the global electricity mix for the first time, @ember-energy.org has found
www.linkedin.com/pulse/renewa...

🔍#Biodiversity. Water. Food. Health. #ClimateChange. All of them interact and intersect but how?

Check this new graphic from the @ipbes.net #Nexus Assessment and explore the interactions among the nexus elements.

Access the Report: www.ipbes.net/nexus/media-...

I get that the news cycle is packed right now, but I just heard from a colleague at the Smithsonian that this is fully a GIANT SQUID BEING EATEN BY A SPERM WHALE and it’s possibly the first ever confirmed video according to a friend at NOAA

10 YEAR OLD ME IS LOSING HER MIND (a thread 🧵)

No words, just emojis 😩🫣🫩😵🤯🤬

So spot on. And unfortunately similar to many of the DOE report responses

Our 400+ page comment on the DOE climate working group report is now out.

Our conclusion: The merchants of doubt are back, and they're coming for climate science.

📘 View the WGIII Chapter Outlines: lnkd.in/efaS4bHZ

I'd love to hear from colleagues on:
👉 What should we carry forward from other ARs?
👉 What emerging ideas/data/research should we include in AR7; and what gaps should be addressed?
👉 How can this chapter better reflect and support implementation in policy, private sector, and practice?

Land systems are at the heart of the climate–biodiversity–people nexus. Among other topics, this chapter will explore how terrestrial ecosystems and agriculture can contribute to decarbonization while enhancing resilience and durable and equitable outcomes for biodiversity and people.

I'm delighted to serve as a Lead Author for the IPCC’s Seventh Assessment Report (AR7) in the Land Sector (AFOLU) Chapter under Working Group III. I'm looking forward to engaging with the wider community on this important multi-year scientific effort.
www.ipcc.ch/2025/08/18/p...

“We were surprised”

Electric trucks ready to overtake diesel on lifetime cost

thedriven.io/2025/05/20/w...
@thedriven.io

Don't be surprised, just be happy
The time for electric trucks is from now on

Virtual Rally to Save the Cornerstone of Conservation Science · National Wildlife Federation We need YOU as we rally in support of critical federal government services at risk of being lost forever. The U.S. Geological Survey Ecosystems Mission Area is responsible for many of the programs tha...

The USGS Ecosystems Mission Area - the backbone of environmental & ecological monitoring in the US - is set to be eliminated through the federal budget. Losing this would be a generational setback for nature & wildlife mgmt. Join NWF's rally to lean more. www.mobilize.us/nwf/event/79...

My ongoing request:

If your NSF or NIH grant was terminated--whether at Harvard or elsewhere--please report it here.

NSF: grant-watch.us/submit-nsf.h...

NIH: grant-watch.us/submit-nih.h...

Our trackers are actively used in lawsuits and are often the only record that terminations ever occurred.

Yup. This was literally me. Funded by Nautilus Minerals to do baseline environmental impact assessment for a hydrothermal vent mine. Went in cautiously optimistic. Came out concluding there's no feasible path forward for mining a hydrothermal vent at any scale.

Air pollution from fossil fuels causes at least 15% of deaths in the U.S., also heart disease, strokes, dementia, preterm birth, low birth weight, asthma and COPD.
It reduces crop yields and work productivity, and damages GDP.
There are lots of reasons to use clean energy, including health.

Really helpful resources on tracking changes in federal environmental policies and federal scientific data. 👏👏

When the climate wonks say net zero should massively reduce our fuel bills, we really aren’t making it up

Frontiers | Warming ends when carbon pollution stops • Improved Earth system models now consider the complex interplay between the oceans and terrestrial biosphere and their key role of actively drawing down ca...

surface warming stops when emissions reach zero, but sub-surface warming, ice sheet decay and sea level rise continue on for decades or longer. Discussed in this review: www.frontiersin.org/journals/sci...

Inside the monarch butterfly migration mystery: flying to Mexico from Canada, the U.S. YouTube video by 60 Minutes

Happy #EarthDay ! Check out this video on the Monarch butterfly migration and their conservation success story to inspire wonder and awe in our natural world. 💚 www.youtube.com/watch?v=hrXz...

“Never have we so hurt and mistreated our common home as we have in the last two hundred years. Reducing greenhouse gases requires honesty, courage and responsibility. Those who will have to suffer the consequences will not forget this failure of conscience and responsibility.” — Pope Francis

The UN’s new Interconnected Disaster Risks Report emphasizes a theory of deep change in 5 key areas to tackle problems like climate, biodiversity loss, pollution. They refer to long term value changes (like around smoking, for instance) as evidence that values can change…