Dr Olive Heffernan's Avatar

Dr Olive Heffernan

@oliveheffernan

Science journalist and author of THE HIGH SEAS. Lover of all things oceans.

712
Followers
40
Following
125
Posts
01.08.2024
Joined
Posts Following

Latest posts by Dr Olive Heffernan @oliveheffernan

LinkedIn This link will take you to a page that’s not on LinkedIn

Excited to announce that I’ll be giving a public lecture at the NI Science Festival in February, on iconic species in Irish waters and the need for restoration of our seas. There will be charismatic creatures, It’s open to everyone, and I’ll be signing books.

Book your ticket here: lnkd.in/eUtEJJfh

29.01.2026 14:56 👍 1 🔁 0 💬 0 📌 0

I was at Dublin Zoo today, to give a reading from THE HIGH SEAS. Thanks for the invitation. It was heartening to meet so many dedicated to animal - and esp cetacean - welfare and research.

#marinemammals #ocean #sciencecommunication #highseas2024

28.11.2025 13:26 👍 3 🔁 0 💬 0 📌 0
Post image

A thrill to see THE HIGH SEAS so proudly displayed in my old neighbourhood of Stoke Newington, London. Thank you!

#thehighseas #ocean #journalism #sciencewriting #highseas2024

24.11.2025 14:20 👍 2 🔁 0 💬 0 📌 0

An overdue thanks for a great conversation about THE HIGH SEAS with the science writing MA class at Johns Hopkins University. It is always, always great to meet and talk to fellow science and environment writers.

#highseas2024 thehighseas #journalism #ocean #writing

24.11.2025 14:12 👍 0 🔁 0 💬 0 📌 0
Post image

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

09.11.2025 17:43 👍 1 🔁 0 💬 0 📌 0
Preview
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...

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...

07.11.2025 14:50 👍 0 🔁 0 💬 0 📌 0
Post image

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

07.11.2025 14:36 👍 2 🔁 0 💬 0 📌 0
Post image

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

20.09.2025 15:10 👍 4 🔁 0 💬 1 📌 0
Preview
Hard-Fought Treaty to Protect Ocean Life Clears a Final Hurdle

Morocco becomes 60th nation to ratify the High Seas Treaty, getting it over the line:

www.nytimes.com/2025/09/19/c...

20.09.2025 14:18 👍 1 🔁 1 💬 1 📌 0
Post image

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

20.09.2025 12:00 👍 2 🔁 0 💬 0 📌 0
Post image

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

20.09.2025 11:59 👍 196 🔁 43 💬 1 📌 2
LinkedIn This link will take you to a page that’s not on LinkedIn

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

06.08.2025 19:29 👍 1 🔁 0 💬 0 📌 0

Congrats Sophie! Shame I didn't make it to the awards last night!

10.07.2025 17:45 👍 2 🔁 0 💬 0 📌 0

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.

03.07.2025 23:25 👍 1 🔁 0 💬 0 📌 0
The blue and green book The High Seas in the centre on a watery background, with the writing "out in paperback in July 2025" on the bottom-right side of the image, and the white Profile logo on the bottom-left of the image.

The blue and green book The High Seas in the centre on a watery background, with the writing "out in paperback in July 2025" on the bottom-right side of the image, and the white Profile logo on the bottom-left of the image.

Happy Paperback Publication Day to The Irish Times Bestseller #TheHighSeas by @oliveheffernan.bsky.social! 🌊🌍

Get your copy here: tinyurl.com/TheHighSeasPB

03.07.2025 07:58 👍 4 🔁 2 💬 2 📌 1

Thank you! 😁

03.07.2025 23:23 👍 1 🔁 0 💬 0 📌 0
Post image

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

03.07.2025 13:59 👍 0 🔁 0 💬 0 📌 0
Post image

Great to see THE HIGH SEAS on display at Books at One, Letterfrack. Out in paperback from tomorrow!

#highseas #ocean #environment #highseas2024

02.07.2025 23:30 👍 1 🔁 0 💬 0 📌 0

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.

01.07.2025 16:21 👍 0 🔁 0 💬 0 📌 0
Post image

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

01.07.2025 15:58 👍 1 🔁 0 💬 0 📌 0

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.

01.07.2025 15:34 👍 0 🔁 0 💬 0 📌 0
Post image
17.06.2025 12:42 👍 0 🔁 0 💬 0 📌 0
Preview
3x31 (EN) Olive Heffernan : Secrets of the High Seas and why they matter more than ever She has a voice · Episode

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

14.06.2025 17:09 👍 0 🔁 0 💬 0 📌 0
Preview
3x31 (EN) Olive Heffernan : Secrets of the High Seas and why they matter more than ever She has a voice · Episode

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

12.06.2025 19:36 👍 0 🔁 0 💬 0 📌 0
Preview
3x31 (EN) Olive Heffernan : Secrets of the High Seas and why they matter more than ever She has a voice · Episode

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

12.06.2025 07:57 👍 1 🔁 0 💬 0 📌 0

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

11.06.2025 21:13 👍 3 🔁 0 💬 0 📌 0
Preview
Parks and Recreation: How Do National Parks Fit Into the National Picture? IRELAND'S EDGE · Episode

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

11.06.2025 10:53 👍 0 🔁 0 💬 0 📌 0
Post image

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.

10.06.2025 11:49 👍 1 🔁 0 💬 0 📌 0
Post image

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

10.06.2025 11:44 👍 0 🔁 0 💬 0 📌 0
Post image

On World Oceans Day, dive into the story of our human relationship with the high seas - that half of our planet that is unclaimed territory. THE HIGH SEAS is out in paperback July 3.

profilebooks.com/work/the-hig...

08.06.2025 21:55 👍 0 🔁 0 💬 0 📌 0