Owen Mulhern


(Data) storytelling and content distribution.

Climate data storytelling and business writing, designed to reach people online and drive them to action.

Imperial College-trained scientist  ·  Paris  ·  English and French

Let's talk ↗
Owen Mulhern
Cited by
California Groundwater Crisis: opening slide of the series
Sea Level Rise 2100
Air Pollution in London
Hotspots: US Dams Under Pressure
Too Hot To Live
Shifting Baselines and the Elusiveness of Climate Change
Extreme Temperatures, Part II: France
Extreme Temperatures, Part III: Canada

Writing

"One of those growth marketers who's just as comfortable in a strategy conversation as he is deep in a spreadsheet."

Beatus Hoang  ·  Sr. Growth Manager, Semrush  ·  managed Owen directly

How I can help

What I can do for you

01

I make climate data viz and write copy…

Research, data acquisition and analysis, visualisation, and the writing around it.

02

…then I make sure people find it and act on it.

Working out who the audience is and what to say to them, search and AI-answer visibility, testing channels, and designing the site, content and assets that turn visits into clicks, sign-ups and purchases.

Let's talk ↗

References

"Owen is one of those growth marketers who's just as comfortable in a strategy conversation as he is deep in a spreadsheet debugging GA4 tracking issues. He reported to me while running Semrush's acquired email assets, The Growth Bulletin and The Early Checkout. He didn't just keep the lights on. He completely overhauled our email program… Whether he was tracking down data discrepancies or running content experiments that doubled our click volume, he owned it completely. He never made excuses and was fully transparent when things didn't work. He's calm under pressure, manages contractors and budgets well, and treats whatever channel he's running like it's his own business. I highly recommend Owen for any growth role."

Beatus Hoang

Beatus Hoang

Sr. Growth Manager, Semrush  ·  managed Owen directly  ·  Feb 2026

"J'ai eu le plaisir de collaborer avec Owen et je le recommande sans hésitation. Owen dispose d'une excellente capacité d'analyse et saisit rapidement les enjeux d'un projet. Il sait transformer ses analyses en plans d'action concrets et efficaces, parfaitement adaptés aux objectifs. Au-delà de ses compétences techniques, Owen apporte une vraie valeur par sa collaboration naturelle. C'est un professionnel sur qui on peut compter. Owen réunit toutes les qualités d'un excellent growth marketer : rigueur analytique, pragmatisme et intelligence relationnelle. Je le recommande les yeux fermés."

Sandrine Dervin

Sandrine Dervin

Head of Marketing, Zest  ·  client  ·  2023 and 2026

Get in touch

Let's work together

Climate data visualisation and writing, and making sure the right people find it and act on it.

owen@getmulhern.com