Nancy Knowlton
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nancyknowlton.bsky.social
Nancy Knowlton
@nancyknowlton.bsky.social
7.3K followers 6K following 530 posts

marine biologist, boomer not doomer, solutionista, 💗Maine💗
Member Natl. Acad. Sci., Darwin Medal
#EarthOptimism #OceanOptimism #BeyondTheObituaries
Author-Citizens of the Sea https://www.amazon.com/Citizens-Sea-Wondrous-Creatures-Census/dp/1426206437 .. more

Videos

Nancy Knowlton is a coral reef biologist and a former Sant Chair for Marine Science at the Smithsonian National Museum of Natural History.

Source: Wikipedia
Environmental science 57%
Geography 16%
Posts Replies Media Videos

Reposted by Christian Odendahl, Richard S.J. Tol, Scott C. Doney , and 6 more

oceanandice.bsky.social
Prof Michael Meredith 🌊🧪🥼❄️ @oceanandice.bsky.social · 1d
A picture is worth 1000 words...

This appeared on the BBC News today, showing the increase in solar electric generation in the UK.

Not sure who produced it, but genuinely think this is a genius piece of scientific communication - the construct and choice of colour scale is near-perfect.

Chapeau!

Reposted by Nancy­ Knowlton­

coastalpaleo.bsky.social
Robert Boessenecker, Dr. of Whaleontology ™️ @coastalpaleo.bsky.social · 5d
Captive bred sunflower stars (Pycnopodia helianthoides) successfully released into Monterey Bay for the first time! This species has been more or less extirpated south of Washington since the 2014 outbreak of sea star wasting disease.🧪🦑
Sunflower star recovery project in California hits major milestone
Their return could help reverse a decade of kelp forest die-offs along the coast.
www.sfgate.com

Reposted by Mark Lubell, Julie L. Lockwood, Nancy­ Knowlton­ , and 3 more

hugepossum.bsky.social
Hugh Possingham @hugepossum.bsky.social · 7d
How do you know whether or not your conservation monitoring program is helping you to deliver outcomes? We have made a checklist of 15 distinct reasons - some more directly connected to outcomes than others.
royalsocietypublishing.org Royal Society Publishing @royalsocietypublishing.org · 12d
2025 Georgina Mace Review now out in #ProcB - How monitoring matters for nature #conservation: 15 reasons framed in a theory of change #OpenAccess royalsocietypublishing.org/rspb/article...

nancyknowlton.bsky.social
Nancy Knowlton @nancyknowlton.bsky.social · 8d
Meow meow. My news to me good news for Dec 26 is the return of a tiny wild cat to Thailand after being MIA for 30 years. #EarthOptimism #BeyondTheObituaries. www.popsci.com/environment/...
Tiny wild cat spotted in Thailand for first time in 30 years
The flat-headed felines are the smallest wild cats in Southeast Asia.
www.popsci.com

Reposted by Nancy­ Knowlton­

bigearthdata.bsky.social
Climate, Ecology, War & More - Dr Glen Barry BigEarthData.ai @bigearthdata.bsky.social · 9d
Wildlife Cam Captures Norfolk's First Wild Beaver In Over 500 Years
->Plant Based News | #wildlife | More from Lil Dr Glen EcoChat at BigEarthData.ai
Wildlife Cam Captures Norfolk's First Wild Beaver In Over 500 Years
Norfolk has a wild beaver living on its rivers for the first time in more than 500 years. A wildlife camera spotted the animal moving logs around to build a lodge, which serves as an above-ground burrow. Broken branches, wood...
plantbasednews.org

Reposted by Stephen D. Murphy

nancyknowlton.bsky.social
Nancy Knowlton @nancyknowlton.bsky.social · 11d
My news to me good news for Dec 23? You can watch laysan albatrosses doing their thing live on Midway Atoll. For those of you with frazzled nerves (all of you?) it is very calming.... Picture below doesn't convey the actual sights and sounds. Give it a try! www.youtube.com/watch?v=L3iK...
Midway Atoll NWR Wildlife Live Camera
YouTube video by Friends of Midway Atoll NWR
www.youtube.com

Reposted by Nancy­ Knowlton­

waiterich.bsky.social
Richard Waite @waiterich.bsky.social · 11d
seems good
marklevinenyc.bsky.social Mark D. Levine @marklevinenyc.bsky.social · 11d
Year 1 data on congestion pricing in Manhattan…

* Vehicle traffic: -11%
* Foot traffic: +3.4%
* Storefront vacancy: -0.9%
* Pollution: -22%
* Revenue for mass transit: $548M

So YES this has been a huge success.

Reposted by Nancy­ Knowlton­

reasonstobecheerful.world
Reasons to be Cheerful @reasonstobecheerful.world · 13d
Mangroves help store carbon in oceans and are effective in reducing the speed and intensity of tsunamis and tidal surges.

That’s why groups of women are working hard to preserve an ancient mangrove forest straddling the border between India and Bangladesh: reasonstobecheerful.world/women-preser...

Reposted by Nancy­ Knowlton­, Joseph Schafer, Anne Norton

robertmclachlan.bsky.social
Robert McLachlan @robertmclachlan.bsky.social · 13d
New Zealand just recorded its first-ever day of zero coal- or gas-fired electricity. In fact two days, 20 & 21 December. (Still some co-gen, about 1.8%.)

Reposted by Nancy­ Knowlton­

alfredtwu.com
Alfred Twu @alfredtwu.com · 13d
Ride, and park, with pride! After the Florida state government banned rainbow crosswalks, one city has found a workaround: rainbow bike racks! 🚲🏳️‍🌈🏳️‍⚧️
www.advocate.com/politics/st-...
Florida city installs Pride bike racks after being forced to remove rainbow crosswalks
St. Petersburg's new bike rack publicly displays LGBTQ+ Pride while complying orders to keep crosswalks undecorated.
www.advocate.com

Reposted by Gavin A. Schmidt, Nancy­ Knowlton­, Jonathan M. Gilligan , and 1 more

tomflood.bsky.social
Tom Flood @tomflood.bsky.social · 13d
Auto Freedom - Winter Edition.

📸 @ldnontbikecafe.bsky.social
A person standing with an orange bike in front of a banner when snowing that says bicycles deliver the freedom that auto ads promise

nancyknowlton.bsky.social
Nancy Knowlton @nancyknowlton.bsky.social · 14d
a small win that I missed earlier... people.com/first-salmon...
Salmon Spotted in California Creek for the First Time in Decades: Here's Why the Fish Are Back
A newly completed restoration project on in the San Francisco Bay Area has opened more than 20 miles of habitat — and Chinook salmon wasted no time swimming back.
people.com

Reposted by Katharine Hayhoe, Nancy­ Knowlton­

timmorton2.bsky.social
Tim Morton @timmorton2.bsky.social · 14d
“Last year more than 40% of electricity generation on Christmas Day came from renewables. It stood at 1.7% in 2009” #GreenSky #GreenShoots
“An extra 2 gigawatts of #wind and 3GW of #solar power came on to the network in 2025” @katharinehayhoe.com @350.org

www.theguardian.com/environment/...
This year’s Christmas could be Britain’s greenest yet, energy operator says
System operator Neso predicts lowest carbon intensity ever on Christmas Day after new wind and solar power come online
www.theguardian.com

nancyknowlton.bsky.social
Nancy Knowlton @nancyknowlton.bsky.social · 14d
An more good news for wildlife. www.cpr.org/2025/12/17/l...
Largest wildlife overpass in North America now ready for use by elk and other critters in Douglas County
The 200-foot-wide Greenland Wildlife Overpass offers a safe crossing for a variety of animals and connects nearly 40,000 acres of habitat on both sides of I-25.
www.cpr.org

nancyknowlton.bsky.social
Nancy Knowlton @nancyknowlton.bsky.social · 14d
A big whoop for the whooping cranes is my news to me good news for Dec 20 #EarthOptimism #BeyondTheObituaries insideclimatenews.org/news/1912202...
The World’s Last Flock of Wild Whooping Cranes Gets More Living Space - Inside Climate News
On an isolated stretch of Texas coastline, conservation groups have acquired more than 3,000 acres of nearly pristine prairie to preserve as habitat for endangered whooping cranes, one of the rarest b...
insideclimatenews.org

Reposted by Nancy­ Knowlton­

cfrederica.bsky.social
Friederike Clever, PhD @cfrederica.bsky.social · 15d
So excited to see this out! Metabarcoding shows fishes shift diets on degraded reefs; growth rates similar, condition diverged → species-specific coping strategies buff.ly/kGkEDpw @mattleray.bsky.social @nancyknowlton.bsky.social @odealab.bsky.social @sbac-manmetuni.bsky.social @stri_panama +others

nancyknowlton.bsky.social
Nancy Knowlton @nancyknowlton.bsky.social · 16d
In big cities walking to the grocery store is something that is (or should be) routine. In the suburbs it can be harder. But not impossible, as my news to me good news for Dec 18 shows. #EarthOptimism #BeyondTheObituaries yaleclimateconnections.org/2025/12/in-a...
In an Ohio suburb, sprawl is being transformed into walkable neighborhoods » Yale Climate Connections
Rethinking American suburbs could help people drive less, lowering emissions.
yaleclimateconnections.org

nancyknowlton.bsky.social
Nancy Knowlton @nancyknowlton.bsky.social · 16d
I visited them in Nairobi and was very impressed (and have a small flip flop giraffe as a reminder). africasciencenews.org/ocean-sole-r...
Ocean Sole Redemption: From Shadows of Crime to Sculptures of Environmental Hope - Africa Science News
By Edwin Austin Along Kenya’s coastlines, discarded flip-flops have become an increasing threat, piling up in the ocean and choking vital marine ecosystems that local communities rely on. But amid thi...
africasciencenews.org

nancyknowlton.bsky.social
Nancy Knowlton @nancyknowlton.bsky.social · 16d
file under couldn't resist... the story itself has some very cute mice photos. www.goodgoodgood.co/articles/wim...
After Wimbledon, these tennis balls have a second life as homes for mice
After the world-famous tennis tournament, the balls go on to become artificial nests for mice.
www.goodgoodgood.co

Reposted by Joanna Bryson, Katharine Hayhoe, Valerie M. Delmotte , and 22 more

science.org
Science Magazine @science.org · 16d
Science has named the seemingly unstoppable growth of renewable energy worldwide as the 2025 Breakthrough of the Year.

Learn more about this year's #BOTY and other big advances in science: https://scim.ag/493Tpgx
Qianjiadong Reservoir in southern Hunan, China, produces a double harvest: solar energy and yellow carp. The solar farm produces up to 80 megawatts of power while the fish forage beneath the panels. With a massive scale-up of solar and wind at home and cheap exports of the technology, China is driving a worldwide surge of renewable energy—Science’s 2025 Breakthrough of the Year.

nancyknowlton.bsky.social
Nancy Knowlton @nancyknowlton.bsky.social · 16d
I agree (and actually not just in the US - in France I eventually just plugged my rental into an outside outlet of the house we rented because the payment system for commercial chargers was so opaque (and I speak French). But that will change... the writing is on the wall.

nancyknowlton.bsky.social
Nancy Knowlton @nancyknowlton.bsky.social · 16d
I agree, and that percentage will only increase. As the owner of an EV (chevy bolt), I can say that it is the best car I have ever owned. The US is moving backward but most of the rest of the world is moving forward, and at some point the US will too.

nancyknowlton.bsky.social
Nancy Knowlton @nancyknowlton.bsky.social · 17d
EVs are unstoppable... www.nytimes.com/2025/12/17/b...
On British Roads, Chinese Cars Are Racing Ahead
www.nytimes.com

nancyknowlton.bsky.social
Nancy Knowlton @nancyknowlton.bsky.social · 17d
The rats are gone and the birds are back - my news to me good news for Dec 17. #OceanOptimism #EarthOptimism #BeyondTheObituaries. www.jointheiocc.org/news/data-sh...
Astounding evidence of recovery on Ulong Island in Palau after just one year! — Island-Ocean Connection Challenge
Seabirds, the IUCN Endangered Palau Ground Dove (Pampusana canifrons), and other native species have significantly increased in number thanks to a successful restoration campaign on Ulong Island, Repu...
www.jointheiocc.org

Reposted by Nancy­ Knowlton­

globalecoguy.bsky.social
Dr. Jonathan Foley @globalecoguy.bsky.social · 17d
We are making a lot of progress on climate change. But not yet enough.

We need to see what’s working, and why, and build on this momentum to match the challenge of stopping climate change.
projectdrawdown.bsky.social Project Drawdown @projectdrawdown.bsky.social · 17d
"Using the latest Global Carbon Budget data, it finds that decoupling is now the norm across advanced economies, with 46% of global GDP in countries that have expanded their economies while cutting emissions."

https://bit.ly/4q830JY
Economic growth no longer linked to carbon emissions in most of the world, study finds
Analysis marking 10 years since Paris climate agreement underscores effectiveness of strong government policies
bit.ly

nancyknowlton.bsky.social
Nancy Knowlton @nancyknowlton.bsky.social · 18d
Women saving mangroves is my news to me good news for Dec 15 #OceanOptimism #EarthOptimism #BeyondTheObituaries reasonstobecheerful.world/women-preser...
Roots of Resilience: The Women Preserving Asia's Ancient Mangrove Forest
Local collectives in the Sundarbans are leading the charge to restore a vital marine ecosystem.
reasonstobecheerful.world

Reposted by Nancy­ Knowlton­

earthsciinfo.bsky.social
Joseph D. Ortiz @earthsciinfo.bsky.social · 19d
It is not just in CAISO where fossil gas is losing ground to renewables with storage. Western Australia is trading gas for renewables with storage too. 🧪🔌💡☀️💨💧🔋https://theconversation.com/big-batteries-are-now-outcompeting-gas-in-the-grid-and-gas-rich-western-australia-is-at-the-forefront-271753
Big batteries are now outcompeting gas in the grid – and gas-rich Western Australia is at the forefront
Gas was long thought to be essential as a backup for a clean energy grid. But enormous growth in grid-scale batteries has changed the game.
theconversation.com

Reposted by Nancy­ Knowlton­, Paul Lehmann, Shawn Graham , and 2 more

brenttoderian.bsky.social
Brent Toderian @brenttoderian.bsky.social · 20d
“The transformation is astonishing. [Paris] has quietly—& quickly—become one of the most bike-friendly cities in the world. What started as a series of emergency “coronapistes” or pop-up bike lanes, built during the pandemic has evolved into a permanent bike network spanning hundreds of kilometres.”
New Study Shows How Paris Pedaled Its Way to a Cycling Revolution
Cycling through central Paris meant weaving between buses and scooters—a bold choice reserved for the fearless few.
momentummag.com

Reposted by Peter Thorne, Nancy­ Knowlton­, Adrian Vickers , and 1 more

brenttoderian.bsky.social
Brent Toderian @brenttoderian.bsky.social · 21d
“Dutch people cycle an average of 2.6km each per day. If this pattern was replicated worldwide, annual carbon emissions would drop by 686 million tonnes.

This mammoth figure exceeds the entire carbon footprint of most countries, including the UK, Canada, Saudi Arabia and Australia.” @euronews.com
Cycling like the Dutch would slash the world’s carbon footprint
If everybody cycled like the Dutch, we could offset the UK or Australia’s entire carbon footprint.
www.euronews.com

Reposted by Rosie A. Fisher, Nancy­ Knowlton­

janrosenow.bsky.social
Jan Rosenow @janrosenow.bsky.social · 21d
No surprise: new analysis shows that heat pumps can deliver excellent performance even in older buildings with no meaningful correlation between building age & heat pump efficiency.

This is in line with my own experience of having a heat pump in a 1880 Victorian home with only modest insulation.