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

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

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 🧵)

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.

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

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

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...

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…

📣 Author nominations for the IPCC AR7 are due next week, April 17. I highly encourage scientists with relevant expertise, especially from social sciences and underrepresented countries and indigenous communities to submit nominations. See WG Report outlines in the link (1/2)

Educators and communicators: check out Open Planet. It is a free library of videos and information about global change on our planet. Useful content on climate change, wildlife, land degradation, food system and more.

With global warming closing in on 1.5C, one aspect is clear: some countries' emissions have exceeded their fair share. To deal with this, we present the concept of carbon debt in a new paper in @pnas.org. Lead author @setupelz.bsky.social explains in a long thread 👇🧵

Join our open webinar today at 10am ET/ 2pm GMT for a presentation and discussion about the IPBES Nexus Assessment and IPBES Transformative Change Assessment (both released in Dec 2024), with a focus on Climate. I'll be co-moderating with my colleague, @beckyck.bsky.social. See link in post below

Yet again, at or above average temperatures were found across all latitude bands over the last three months, particularly in the #Arctic. [Plot shows zonal-mean surface air temperature anomalies, where latitude = y-axis (not scaled by distance). Data from NASA/GISS GISTEMPv4]

The new WMO State of the Climate report has a section by Gavin Schmidt and me on attributing exceptional 2023 and 2024 warmth. We find that while 2024 can be well explained by changes in forcings and internal variability, 2023 remains more of a mystery:

Never forget, a 13-year study found that protected bike-lanes led to a drastic decline in fatalities for all road users. ALL ROAD USERS. And painted bike-lanes? No safety improvement at all. For sharrows, it’s actually safer to NOT have them. Via @usa.streetsblog.org @nyc.streetsblog.org

The people who produce this Mauna Loa atmospheric CO₂ record have a lab in Hilo, Hawaiʻi, about 50 miles (80 km) from the observatory. By closing the lab, it'll be really difficult to maintain the CO₂ observations.

📣 Hey conservationsky! 🌍 We recently launched the WWF Fuller Science for Nature Seminar Series, Solutions for the Planet's Interlinked Challenges. This series brings together experts from the two most recent IPBES assessments (Nexus & Transformative Change): www.worldwildlife.org/pages/soluti...

My homeland, the Philippines, loses ~3% of its GDP to extreme weather related disasters - the highest % in the world. The runner up is the US with 0.38%. The WWA does important work attributing these disasters to climate change. It shows we can’t afford inaction. earth.org/extreme-weat...

👏 This 👏

This is depressing news and does not bode well for peaking global emissions this year or next. Increased energy demand (e.g. data centers & novel tech like AI in the US; and industry and homes in China) is slowing phase down, even though renewables are seeing record growth.

From 1.5C to 2C of global warming is an increase by 33.3 percent. Many people assume that the negative impacts of this would also increase by only 33.3 percent. Unfortunately, that is not the case. The increase is non-linear. This is one of the biggest missing pieces in public climate literacy.

I sometimes tell people at public workshops (particularly if they're skewing older): "We have worked really hard for the past 80 years to make sure it's easy to drive, but in the process we made it so it's the only easy option. Rebalancing will take time, and it'll mean change."

This week, I’m at the IPCC AR7 Scoping Meeting to develop the outline and content bullets for WG1-3 reports. As an author on AR6 WG3 and my work at WWF translating science to policy & practice, I’m interested to hear ideas on gaps, & how to improve the assessment and its actionability.

On The Climate Brink: Stop emissions, stop warming: A climate reality check This is a crucial point because it determines how much warming is already "locked in" and effectively unavoidable. The answer is very little warming is locked in. Also, this is our 100th post! www.theclimatebrink....

The Seven Stages of climate denial: 1. It's not real 2. It's not us 3. It's not that bad 4. We have time 5. It's too expensive to fix 6. Here's a fake solution 7. It's too late: you should have warned us earlier Trolls use all of these stages to deny reality of #climatechange on Ex-Twitter 🤣

Here is another #Bluesky starter pack with scientists who were involved in the @ipcc.bsky.social #AR6 reports (with a likely WGI bias). Please let me know if I missed you! go.bsky.app/Erpq9Sq @valmasdel.bsky.social @edhawkins.org @glenpeters.bsky.social @lisaschipper.bsky.social

CDR folks: do you know any recent studies with updated mitigation potentials for novel CDR technologies? Bonus if they don’t rely on IAMs. I’d like to get feasible estimates for 2030 and 2040, ideally with some cost ranges. @hausfath.bsky.social @davidho.bsky.social @gregnemet.bsky.social

Important new study shows that current climate models underestimate the human-caused slowing of the #AMOC (Atlantic Meridional Overturning Circulation), because they neglect freshwater influx from Greenland melt and other sources. /1 🌊 www.nature.com/articles/s41...

Do you read reports? If so, what is the best report you’ve read in the last year or two, and why? As an author on various reports this year (State of CDR, Living Planet, Emissions Gap Report, & Biodiversity & Climate Change Assessment), I’m exploring what resonates, provides value, & makes impact

Do you read reports? If so, what is the best report you’ve read in the last year or two, and why? As an author on various reports this year (State of CDR, Living Planet, Emissions Gap Report, & Biodiversity & Climate Change Assessment), I’m exploring what resonates, provides value, & makes impact

@katharinehayhoe.com I made the move to Bluesky! I’d love to access your climate science list. Looking forward to discussing climate science without bots!