Dr. Stephanie Roe

“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...

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

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...

Pope Francis receiving a warming stripes stole. Photo: Vatican Media

“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…

WWF is an IPCC Observer organization so you can also submit your nominations through us (email me) if you cannot access your country focal point or missed their deadline. You need to submit a short nomination form and a 4-pg CV. The nomination form is here: apps.ipcc.ch/nominations/... (2/2)

📣 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

Bar graph showing zonal mean surface air temperature anomalies for the December 2024 to February 2025 period. All latitude bands are above average relative to a 1951-1980 climatological baseline. Data is from GISTEMPv4.

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:

Separated Bike Lanes Means Safer Streets, Study Says — Streetsblog USA Cities that build protected lanes for cyclists end up with safer roads for people on bikes and people in cars and on foot, a new study of 12 large metropolises revealed Wednesday.

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.

Solutions for the Planet’s Interlinked Challenges | Pages | WWF

📣 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.

I really like figures like this from WRI. Do you know if there are any iterations that include 3C and 4C?

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."

Not the only one! I wondered if others would spot this 🤓 The meeting is in Kuala Lumpur, and the towers are iconic, but I agree they are not the right message!

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.

Stop emissions, stop warming: A climate reality check Why future warming isn't as "locked in" as you might think

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....