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Serge Dedina, Ph.D.

@sergededina.bsky.social
63 followers 86 following 38 posts

Executive Director of WILDCOAST. Author of Saving the Gray Whale, Wild Sea and Surfing the Border. Driving ocean conservation and natural climate solutions in the U.S. and Latin America.

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Serge Dedina, Ph.D. @sergededina.bsky.social · 22/06/2025
Excellent coverage of record gray whale mortality in NW Mexico via @ernesto-mendez.bsky.social via Excelsior.
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Reposted by Serge Dedina, Ph.D.
Brian McNoldy @bmcnoldy.bsky.social · 19/06/2025
Hurricane #Erick rapidly intensified from a tropical storm to a Category 4 hurricane in the 24 hours leading up to landfall. This is the East Pacific's 5th named storm, 2nd hurricane, and 1st major hurricane of the season... the average dates for those are July 23, July 15, and July 15. [1/2]
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Serge Dedina, Ph.D. @sergededina.bsky.social · 19/06/2025
Ocean temp jumps to 70 in La Jolla. SD Bay temp was 73 at Crown Cove, Silver Strand State Beach yesterday.
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Serge Dedina, Ph.D. @sergededina.bsky.social · 18/06/2025
www.accuweather.com/en/hurricane... Hurricane Erick to strengthen rapidly, become Category 3
accuweather.com
Hurricane Erick to strengthen rapidly, become Category 3
Erick was upgraded to a hurricane on Wednesday morning. Additional rapid strengthening is feared prior to approaching the southwestern coast of Mexico on Thursday with the effects of a major hurricane...
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Reposted by Serge Dedina, Ph.D.
WILDCOAST COSTASALVAJE @wildcoastorg.bsky.social · 16/06/2025
🌎 This is our call to the wild. At WILDCOAST, we believe that protecting the planet means protecting the people, communities, and cultures that depend on it. Join us in building a future where nature thrives. 🌿🐢🌊 www.youtube.com/watch?v=dTdS...
youtube.com
WILDCOAST Manifest
YouTube video by WILDCOAST
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Serge Dedina, Ph.D. @sergededina.bsky.social · 09/06/2025
Current ocean temp in Huatulco National Park in Oaxaca 32 Celsius or 89.6 Fahrenheit, 7 meters or 21 feet below the surface.
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Serge Dedina, Ph.D. @sergededina.bsky.social · 06/06/2025
Our @wildcoastorg.bsky.social team hosted an awards ceremony in Tijuana for the participants in a video contest for students on the border waste tire crisis. Great media presence and participation of the next generation of environmental entrepreneurs in Baja California.
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Serge Dedina, Ph.D. @sergededina.bsky.social · 06/06/2025
Our @wildcoast camera traps in our co-managed Mascalco Indigenous Coastal Reserve in Oaxaca caught a glimpse of the wildlife of this unique and threatened dry tropical forest reserve: youtu.be/ByIAACqwGRM?si…
youtu.be
VIDA SILVESTRE EN MASCALCO - WILDLIFE IN MASCALCO
YouTube video by WILDCOAST
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Reposted by Serge Dedina, Ph.D.
Scripps Institution of Oceanography @scrippsocean.bsky.social · 28/05/2025
⚠️ Pollution from the Tijuana River—including sewage and industrial waste—is impacting air quality in San Diego, according to a new study led by @ucsandiego.bsky.social researchers. Learn more about the research led by @chemcooper.bsky.social and @kprather.bsky.social. ⬇️ @ucsdphysci.bsky.social
today.ucsd.edu
Pollution From the Tijuana River Affects Air Quality in San Diego
A new study from UC San Diego examines how pollutants from the Tijuana River travel and are transmitted in the atmosphere through coastal aerosols. The study found a mixture of drugs and chemicals fro...
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Serge Dedina, Ph.D. @sergededina.bsky.social · 26/05/2025
The @nytimes.com on the border sewage crisis: “In 2022..Dedina moved Wildcoast..out of Imperial Beach because his employees began complaining of toxic fumes. Then, last year, he and his wife moved to central San Diego. The health risks..had become too much.” www.nytimes.com/2025/05/26/u...
nytimes.com
In California, There’s One Import That Nobody Wants
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Serge Dedina, Ph.D. @sergededina.bsky.social · 12/05/2025
Please to be part of the Scripps Institution of Oceanography May 13th at SIO on Cross-Border Binational Research. It is more important than ever to carry out cross-border research and conservation projects to promote coastal and ocean conservation and research.
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Serge Dedina, Ph.D. @sergededina.bsky.social · 12/05/2025
A #mustread: “..the recent freedom under which wolves have thrived in Europe is once again in peril.” www.nytimes.com/2025/05/12/o...
nytimes.com
Opinion | When Politics, Borders and Wolves Collide
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Serge Dedina, Ph.D. @sergededina.bsky.social · 10/05/2025
‘Hopefully Congress, will..stop..the inexplicable economic self-sabotage caused by a trade war. In the meantime my @wildcoastorg.bsky.social team and I will..make sure that ..wildlife..can thrive in and around our ocean everyday of the year.” www.sandiegouniontribune.com/2025/03/14/o...
sandiegouniontribune.com
Opinion: As a former border mayor, I see the tariff war bringing tragic loss, shock and outrage
With a looming trade war between the U.S., Canada and Mexico as a result of President Trump threatening the application of 25% tariffs on Canada and Mexico (a move the Wall Street Journal referred …
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Serge Dedina, Ph.D. @sergededina.bsky.social · 10/05/2025
Here’s the write up about me and @wildcoastorg.bsky.social in Giving Back magazine. gbsan.com/10-things-ab...
gbsan.com
10 Things About Serge Dedina Ph.D. & WILDCOAST
Who said it was supposed to be easy? WILD COAST is an international team that conserves coastal and marine ecosystems and addresses climate change through natural solutions. For the past 25 years, WIL...
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Serge Dedina, Ph.D. @sergededina.bsky.social · 08/05/2025
In the field in Tijuana today with our @wildcoastorg.bsky.social team who have built 2 trash booms to stop marine debris from entering the ocean. One is made from a confiscated totoaba netw from the Gulf of CA.
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Serge Dedina, Ph.D. @sergededina.bsky.social · 04/05/2025
Impact of sand project threatens to close of the San Dieguito Lagoon SMCA. We need to make sure sand replenishment projects incorporate cost of lagoon inlet dredging. www.cbs8.com/article/news...
cbs8.com
Wildlife at risk as sand threatens San Dieguito Lagoon
Ocean currents push sand into San Dieguito Lagoon. This movement could block tidal flow and endanger hundreds of species in the area.
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Serge Dedina, Ph.D. @sergededina.bsky.social · 24/04/2025
Here’s our @wildcoastorg.bsky.social op-ed with our partners from Friends of Rose Canyon and Batiquitos Lagoon Foundation in the San Diego Union Tribune on restoring and rewilding our canyons and wetlands in SoCal. #bluecarbon #rewilding
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Reposted by Serge Dedina, Ph.D.
WILDCOAST COSTASALVAJE @wildcoastorg.bsky.social · 09/04/2025
Hi, Bluesky! We’re WILDCOAST—an int'l team founded by @sergededina.bsky.social and J Nichols in 2000 working to conserve coastal and marine ecosystems in California and Mexico. Here's a photo of a some baby sea turtles whose nesting beach we protect to kick things off 🐢👀
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Serge Dedina, Ph.D. @sergededina.bsky.social · 08/04/2025
Here's our @wildcoastorg.bsky.social op-ed on the need to clean up the Tijuana River. voiceofsandiego.org/2025/04/07/t...
voiceofsandiego.org
The Government Must Act Now to Address Tijuana River Pollution
Officials need to get creative about solutions to the ongoing pollution.
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Serge Dedina, Ph.D. @sergededina.bsky.social · 25/01/2025
“Australians tend not to see fires as a government problem, but a shared one.” This reduces “pointless blame games after big fires,” he added, facilitating more constructive, collaborative responses and policy change. www.nytimes.com/2025/01/25/o...
nytimes.com
Opinion | California, We Feel Your Pain Here in Australia
In California’s fire-stoked debate over how aggressively to manage both nature and urban sprawl, Australia can share both empathy and insight.
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Serge Dedina, Ph.D. @sergededina.bsky.social · 23/01/2025
Batiquitos Lagoon Ecological Reserve restoration event today with @wildcoastorg.bsky.social —replacing firebomb and biodiversity killing eucalpysus with carbon storing wetland and wildlife friendly native plants!!
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Serge Dedina, Ph.D. @sergededina.bsky.social · 19/12/2024
Our @wildcoastorg.bsky.social team organized a cleanup of the TJ River channel. The thousands of waste tires in the river are from California. www.cbs8.com/article/news...
cbs8.com
Wildcoast's border cleanup stops thousands of pounds of trash from flowing into U.S.
"The majority of the things we catch in those booms are plastic and tires. That trash ends up on the US side," Wildcoast says
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Serge Dedina, Ph.D. @sergededina.bsky.social · 17/12/2024
A giant in the field of coastal management. Thanks for a lifetime of service to our coastlines Dr. Pilkey and to a life well lived! www.nytimes.com/2024/12/16/s...
nytimes.com
Orrin H. Pilkey, Warrior in a Fight to Save Imperiled Beaches, Dies at 90
An eminent geologist, he argued against putting condos and hotels on vulnerable coastal landscapes. Environmentalists applauded; many others didn’t.
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Serge Dedina, Ph.D. @sergededina.bsky.social · 15/12/2024
Here’s what’s ready to flow into the @TijuanaEstuary and the Pacific Ocean when it rains. This is the Tijuana River channel on 12/15/24 that is used as an “unofficial” but really official garbage dump in Tijuana. Garbage trucks dump their loads directly into the channel.
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Serge Dedina, Ph.D. @sergededina.bsky.social · 15/12/2024
A devastating #mustread: www.nytimes.com/2024/12/15/o...
nytimes.com
Opinion | My 500-Mile Journey Across Alaska’s Thawing Arctic
I had read about how the rapid warming of the Arctic was upending the landscape and its people. Now I’ve seen it.
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Serge Dedina, Ph.D. @sergededina.bsky.social · 14/12/2024
Love our the kelp forests and tidepools in our San Diego County MPAs!!!
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Serge Dedina, Ph.D. @sergededina.bsky.social · 07/12/2024
The U.S.-Mx border pollution crisis in San Diego-Tijuana featured in Mexico’s Excelsior newspaper. This crisis has closed border beaches for years and is destroying a national wildlife refuge.
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Serge Dedina, Ph.D. @sergededina.bsky.social · 01/12/2024
A bobcat in our @wildcoastorg.bsky.social Valle de los Cirios Coastal Reserve in Central Baja California—one of the least populated coastal regions in the Californias.
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Serge Dedina, Ph.D. @sergededina.bsky.social · 01/12/2024
A must read.. www.nytimes.com/2024/12/01/c...
nytimes.com
What a Marine Heat Wave Reveals About Our Warming Oceans
An extreme heat wave off California’s coast seemed like an anomaly 10 years ago. But as the ocean warms, the catastrophe may be a glimpse of the future.
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Serge Dedina, Ph.D. @sergededina.bsky.social · 27/11/2024
Listen to this new episode of Nature Junkie Radio and the interview with Dr. Wallace J. Nichols on blue mind. RIP J!! We think about you everyday. open.spotify.com/episode/4jcg...
open.spotify.com
A Masterclass on Blue Mind with Wallace J. Nichols
Nature Junkie Radio · Episode
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Serge Dedina, Ph.D. @sergededina.bsky.social · 26/11/2024
Jason Murray and I watched the destruction of Harry’s in northern Baja: “WILDCOAST director Serge Dedina stumbled upon the wreckage in the first week of July, and witnessed the dump trucks as they covered Harry’s in an earthen grave.”
surfer.com
The Discovery (and Death) of a Baja Secret Spot
Rest in peace, Harry’s. How Greg and Rusty Long found perfection in the early 2000s…and had it all to themselves.
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Serge Dedina, Ph.D. @sergededina.bsky.social · 25/11/2024
Always inspired by our @wildcoastorg.bsky.social #mangrove #restoration partners Las Guardianas del Conchalito in La Paz, BCS, Mexico, who are innovating the restoration of the Bay of La Paz, hope to whale sharks!! #naturalclimatesolutions #bluecarbon
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Serge Dedina, Ph.D. @sergededina.bsky.social · 25/11/2024
Good to see the City of Oceanside, California, pursuing innovative solutions for beach protection. Very much a stakeholder driven process with an international design competition. Let’s see how long state and federal agencies take to approve permits.
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Serge Dedina, Ph.D. @sergededina.bsky.social · 22/11/2024
Interview with Sam of The River Radius podcast on the TJ River border pollution crisis. Always like to have the studio outdoors!
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Serge Dedina, Ph.D. @sergededina.bsky.social · 22/11/2024
At Border Field State Park literally on the U.S.-Mx border in San Diego this morning. Due to sewage pollution from TJ our park is pretty much permanently closed. What a tragedy…
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Serge Dedina, Ph.D. @sergededina.bsky.social · 22/11/2024
Extraordinary beauty in the Bay of La Paz, BCS, Mexico. Grateful to our WILDCOAST team for their role in protecting its ecosystems and wildlife!!
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Serge Dedina, Ph.D. @sergededina.bsky.social · 21/11/2024
Shocked that Governor Alfonso Durazo of Sonora re-launched the discredited and disgraced "Escalera Nautica" project that a coalition of NGOs halted 21 years ago. And he did it at a conservation meeting, Foro Mar de Cortes!!! Lessons never learned, tragic mistakes repeated.
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Serge Dedina, Ph.D. @sergededina.bsky.social · 21/11/2024
Learning about the wildlife of Chacahua National Park in Oaxaca. Always best to learn from the locals!
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Serge Dedina, Ph.D. @sergededina.bsky.social · 21/11/2024
Devastating look at the beach closure and pollution crisis in San Diego-Tijuana and its impact on border communities: californiainsider.com/california-n...
californiainsider.com
Another Border Crisis: Why California’s Popular Surfing Beach is Shut Down | California Insider
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Serge Dedina, Ph.D. @sergededina.bsky.social · 20/11/2024
The Guardianas de El Conchalito are conserving and protect mangroves in the Bay of La Paz, Mexico. Appreciate their partnership with WILDCOAST!!
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Serge Dedina, Ph.D. @sergededina.bsky.social · 20/11/2024
Fantastic trip to La Paz, Mexico, to see our WILDCOAST coral reef and mangrove conservation projects!!
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