Dr Olive Heffernan
banner
oliveheffernan.bsky.social
Dr Olive Heffernan
@oliveheffernan.bsky.social
Science journalist and author of THE HIGH SEAS. Lover of all things oceans.
Thanks to the Beta Festival 2025 for a great discussion on the politics of water, at Dublin's Digital Hub this weekend.

#highseas2024 #oceans #oceanconservation
November 9, 2025 at 5:43 PM
Put this in the diary. Dec 4 at The Project, Dublin, will be a celebration of the life and work of Emma O'Kane. It's also a fundraiser for the incredible Emma O'Kane Bursary, which supports developing artists in Ireland.

Details here: www.emmaokanebursary.ie/news/project...
Project Arts Centre Benefit Event
SUPPORT THE EMMA O’KANE BURSARY - Benefit screening of WillFredd Theatre's film of JOCKEY. Directed by Sophie Motley, co-created and featuring Emma O’Kane. Followed by a panel discussion with key cre...
www.emmaokanebursary.ie
November 7, 2025 at 2:50 PM
I am so thrilled to learn that the High Seas Treaty has won the Earthshot Prize. This was so well deserved, for a collective sustained effort over decades to protect the half of our planet that is unclaimed ocean. Congratulations!

#highseas #oceans #bbnj
November 7, 2025 at 2:36 PM
I recently had the most wonderful chat about the ocean with Colm O’Regan (comedian, maths nerd, author of Climate Worrier) for The Function Room, a maths podcast. Such fun. We got into some serious number crunching, all while talking about the #highseas.

You can listen here:
lnkd.in/eFtzW3hc
September 20, 2025 at 3:10 PM
Morocco becomes 60th nation to ratify the High Seas Treaty, getting it over the line:

www.nytimes.com/2025/09/19/c...
Hard-Fought Treaty to Protect Ocean Life Clears a Final Hurdle
www.nytimes.com
September 20, 2025 at 2:18 PM
To find out more about the wonders of the High Seas, and why this half of the planet deserves our attention, and protection, read my book, The High Seas, out now in paperback!

#highseas2024 #thehighseas #bbnj
September 20, 2025 at 12:00 PM
Amazing news! The United Nations High Seas Treaty has crossed the required 60-country ratification threshold, meaning that the agreement will enter into force in January.

This is a major win for ocean conservation.

Congrats to all of those involved in making this happen!

#bbnj #highseas2024
September 20, 2025 at 11:59 AM
I recently had the most wonderful chat about the ocean with Colm O’Regan (comedian, maths nerd, author of Climate Worrier) for The Function Room, a maths podcast. Such fun. We got into some serious number crunching, all while talking about the high seas.

You can listen here:
lnkd.in/eFtzW3hc
LinkedIn
This link will take you to a page that’s not on LinkedIn
lnkd.in
August 6, 2025 at 7:29 PM
Congrats Sophie! Shame I didn't make it to the awards last night!
🏆#ABSWawards 2025

👉Steve Connor Award for investigative science journalism - in memory of science journalist Steve Connor

🎉Sophie Borland @bmj.com
👏👏👏Congratulations!!!
July 10, 2025 at 5:45 PM
Thank you @profilebooks.bsky.social! and to all of the readers who have reached out. It's been an amazing journey so far. I look forward to many more conversations about the future of our ocean and planet.
Happy Paperback Publication Day to The Irish Times Bestseller #TheHighSeas by @oliveheffernan.bsky.social! 🌊🌍

Get your copy here: tinyurl.com/TheHighSeasPB
July 3, 2025 at 11:26 PM
Reposted by Dr Olive Heffernan
Happy Paperback Publication Day to The Irish Times Bestseller #TheHighSeas by @oliveheffernan.bsky.social! 🌊🌍

Get your copy here: tinyurl.com/TheHighSeasPB
July 3, 2025 at 7:58 AM
Thank you! 😁
Once agagain: READ @oliveheffernan.bsky.social's book! So far, no one has written a more succinct, poignant and easily understandable account on why WE SHOULD LEAVE THE DEEP SEA THE HELL ALONE.
#DeepSeaMining companies: “The ocean will recover!” 🌊✨

Science: “Cool, we checked but the #DeepSeabed would not like it.” 🫠

Massive species decline, barely any recovery. #StopDeepSeaMining #PrecautionaryPause #DefendTheDeep #KeepItInTheSeabed
July 3, 2025 at 11:23 PM
It's publication day for THE HIGH SEAS paperback! Thanks to my publishers and to everyone who has reached out about the book this past year. It's been an amazing journey so far. Looking forward to many more conversations about the future of our ocean.

#highseas #highseas2024 #ocean #environment
July 3, 2025 at 1:59 PM
Great to see THE HIGH SEAS on display at Books at One, Letterfrack. Out in paperback from tomorrow!

#highseas #ocean #environment #highseas2024
July 2, 2025 at 11:30 PM
This week I visited Pacific Palisades in LA, a neighborhood destroyed by the January fires. Shocking to see the scale of destruction, just outside of the city, and people's determination to start over and rebuild.
July 1, 2025 at 4:21 PM
Only two days until the release of THE HIGH SEAS paperback!
Out July 3rd and available from all the usual places!

#highseas2024 #ocean #highseas #scicomm #environment
July 1, 2025 at 3:58 PM
Thrilled to be a finalist for this year's Steve Connor Award for Investigative Journalism, for my piece in The Journal Investigates on the decline of Lough Hyne Marine Reserve. www.thejournal.ie/investigates...

Thanks to my editor, Maria Delaney, to my funders at The Pulitzer Center and to ABSW.
www.thejournal.ie
July 1, 2025 at 3:34 PM
June 17, 2025 at 12:42 PM
Delighted to speak with Eli Tremps for ‘She has a Voice’ about the mysteries of the high seas, ocean protection and my experience of being a woman reporting on the ocean.

A timely conversation for the end of the UN Ocean Conference in Nice.

You can tune in here: tinyurl.com/b9fhpj5y
3x31 (EN) Olive Heffernan : Secrets of the High Seas and why they matter more than ever
She has a voice · Episode
tinyurl.com
June 14, 2025 at 5:09 PM
Delighted to speak with Eli Tremps for ‘She has a Voice’ about the mysteries of the high seas, ocean protection, and my experience of being a woman reporting on the ocean.

A great conversation and a timely one for the UN Ocean Conference in Nice.

You can tune in here: tinyurl.com/b9fhpj5y
3x31 (EN) Olive Heffernan : Secrets of the High Seas and why they matter more than ever
She has a voice · Episode
tinyurl.com
June 12, 2025 at 7:37 PM
Delighted to speak with Eli Tremps for ‘She has a Voice’ about the mysteries of the high seas, ocean protection and my experience of being a woman reporting on the ocean.

A great conservation and a timely one for the UN ocean conference in Nice.

You can tune in here: tinyurl.com/b9fhpj5y
3x31 (EN) Olive Heffernan : Secrets of the High Seas and why they matter more than ever
She has a voice · Episode
tinyurl.com
June 12, 2025 at 7:57 AM
At an enlightening “Abyss talk” on deep sea mining in a tiny pub in Nice. Leticia Carvahlo here too! Loving UNOC. #unoc3 #ocean #deepseamining #highseas
June 11, 2025 at 9:13 PM
Ireland's Edge has released a podcast of a session I joined in Dingle 2024, on what ocean protection means in practice.

Raises many of the same issues discussed in my book THE HIGH SEAS, in David Attenborough's Ocean film, and at UNOC this week in Nice. You can tune in here: tinyurl.com/mr2hebyk
Parks and Recreation: How Do National Parks Fit Into the National Picture?
IRELAND'S EDGE · Episode
tinyurl.com
June 11, 2025 at 10:53 AM
At UN Ocean Conference in Nice today. 50 states (inc EU) have now ratified the High Seas Treaty. 136 nations have signed. 60 ratifications needed soon to reach target of protecting 30 percent of ocean by 2030. Why is this important? All is answered in THE HIGH SEAS, out in paperback July 3rd.
June 10, 2025 at 11:49 AM
If you've watched David Attenborough's most recent film 'Ocean' and want to learn more about the deep sea, mysterious ocean habitats and our past and future relationship with the ocean, read THE HIGH SEAS. Out in paperback July 3rd.

#DavidAttenborough #Books #NatureBooks #Ocean #Climate #UNOC
June 10, 2025 at 11:44 AM