Earth Horizon Productions: Celebrating 25 years of Impact
Earth Horizon Productions was set up in 2000 and has since made dozens of high-impact TV series and documentaries, mostly in Ireland but also for international audiences.
Earth Horizon has helped shape public understanding of our planet’s most urgent environmental and social challenges – always grounded in verifiable fact-based reporting.
Based in Dublin, but globally engaged, this award-winning independent production company has operated as a nimble but potent creative force. With a small, dedicated team, the company has produced national television series and award-winning documentaries that have resonated not only in Ireland but internationally, establishing a reputation for quality and credibility, which continues to set the standard in intelligent storytelling and informed engagement.
Rooted in Expertise
Headed by Marcus Stewart, a filmmaker and factual television producer with over two decades of experience and a passion for engaging factual content. Marcus ensures that Earth Horizon combines cinematic storytelling and journalistic credibility with pedagogical purpose. Stewart’s leadership ensures each production is not only visually compelling and entertaining, but factually and scientifically robust.
What’s Next for Earth Horizon?
As the world is undergoing significant changes in the information ecosystem and as factual storytelling evolves, Earth Horizon remains a forward-thinking leader. Whether exposing new threats, showcasing frontline solutions, or shaping public policy through compelling media, their trajectory is one of clarity, creativity, and courage.
Whether you’re a partner, policymaker, or viewer passionate about “telling it like it is,” Earth Horizon Productions continues to be committed to delivering content that matters and results that resonate.
In Production
Earth Horizon are currently in post-production on the feature film version of Global Warning, which will launch at a prominent Film Festival in late 2025. The 3x 1hr series of Global Warning premieres in July 2025 on Al Jazeera (English).
Also in production: Garbage Girls a new feature documentary filmed in India over ten years.
Past Projects
Earth Horizon have 25 years of experience producing TV series and documentaries.
Eco Eye TV series was for 21 years Ireland’s only environment-focused TV series, which broadcast for 10-weeks each year on prime time viewing at 7pm on RTE1 where it consistently outperformed its slot and was often regarded as one of Ireland’s best-known factual TV series.
Other notable projects include ‘About The House’ TV series, ‘Return To Chernobyl’ documentary, ‘Marathon Men’ documentary.
In more recent years Earth Horizon have pivoted to international documentary with a new series called Global Warning
2025
Global Warning feature film and international series launch
2024
Rising Tides 3 x1hr broadcast on RTE1
https://vimeo.com/926621372?share=copy
2023
Eco Eye series 21 finale broadcast
2022
Eco Eye series 20 broadcast on RTE and back catalogue sales to 47 other international territories.
2021
Eco Eye series 19 broadcast on RTE1
2020
Eco Eye series 18 broadcast on RTE1
Also in production is ‘Garbage Girls’ a feature length documentary shot almost entirely in India while previous documentaries include ‘Marathon Men’, ‘A Burning Question’ and ‘Return to Chernobyl’ and more recently Global Warning and Rising Tides.

Earth Horizon Productions
13 Windsor Place,
Dublin 2
+353 1 6621082