The Great Green Balloon Debate 2025

Cutting through all the noise surrounding Sustainability can be a challenge, but that’s exactly what we (me, Jane Pendlebury from HOSPA and Grace Greensitt from Global Sustainability Index) set out to do with our Great Green Balloon Debates.

We were back again this year and it was better than ever.

It’s quickly become one of my favourite events and is an absolute delight to moderate. Thank you to all of our amazing speakers, who represented their chosen fields so brilliantly. And huge congratulations to our winner: Safina Naz and runners up Kate Page and James Shorey.

What’s a Great Green Balloon Debate?

We get a bunch of inspirational sustainability professionals in a room and get them to pitch why they (or their chosen subject area) are most likely to ‘save the planet’. The ultimate aim is to highlight the complexity of sustainability and the need for collaboration. But, for one night only, the experts go head-to-head to win the audience’s vote (and stay in the balloon). Find out more in the video directly below.

What is a Great Green Balloon Debate?

Event Snapshot

Our 2025 Sustainability Professionals

Safina Naz

Kate Page

James Shorey

Ed Perryman

Amanda Bronkhorst

Matt Hughes

Mark Grant

Kevin Duncan (standing in for Professor Mark Maslin)

Charlotte Newman – Carefree

The Great Green Balloon Debate 2024

Introductions

Our 2024 Sustainability Professionals