Find & list green events
across the UK
Your guide to sustainability, net-zero, ESG and environmental events in 2026.
Stay informed. Stay compliant. Stay ahead.
2026 is one of the most significant years yet for UK sustainability and climate action. New reporting requirements are coming into force, net-zero strategies are being tested against real targets, and the pace of policy change is accelerating. For businesses serious about the transition, knowing what is happening, and when, is a competitive advantage.
The SBS Sustainable Events Calendar brings together sustainability, net-zero, climate, ESG, circular economy and environmental events taking place across the UK, from flagship conferences and industry summits to global observance days, local authority workshops, policy launches, funded SME programmes and academic webinars.
Whether you are a sustainability professional building your CPD plan, a business leader mapping your compliance calendar, a procurement officer tracking PPN 006 developments, or an event organiser wanting to reach the UK's sustainability audience, this calendar is built for you.
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Used by sustainability teams, business owners and compliance leads across the UK. Free for everyone.
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What's on
Unblocktober
Month-long UK campaign to improve the health of drains, sewers, watercourses and seas by changing habits at home and work.
📍 Online
Constructed Wetlands for Wastewater Treatment
Online event series on using constructed wetlands for wastewater treatment.
📍 Online
CIWEM Northern Ireland Conference 2026: 40 Years of Progress, 40 Years of Possibility
Annual Northern Ireland water and environmental management conference.
Delivering Scotland's Energy Future
Event on practical delivery of Scotland's future low-carbon energy system.
📍 South Hall, University of Edinburgh
Publishing Scotland Environmental Sustainability Forum
Sector event for sustainability knowledge, inspiration and networking in publishing.
📍 Edinburgh Climate Change Institute, High School Yards
Technical Discussion on the Scottish Planning Biodiversity Metric with NatureScot
Technical discussion of Scotland's planning biodiversity metric.
📍 Zoom
The Big Sustainability Expo 2026
The 11th edition of the UK's longest-running B2B sustainability event, featuring up to 100 exhibition stands, a speaker theatre, EV showcase, and an expo magazine.
📍 Hilton Southampton - Utilita Bowl
Future of Utilities: Smart Energy 2026
Large utility conference on modernising and digitalising the energy system.
📍 Convene, 133 Houndsditch, EC3A 7DB
Cumbrian Lakes Research Forum 2026
Forum sharing research and practice in lake and catchment monitoring and management.
📍 UKCEH Lancaster + Microsoft Teams
Energy Landscape UK 2026
Two-day event focused on removing barriers to UK net-zero energy delivery.
📍 The Kia Oval, Kennington Oval, SE11 5SS
Building Resilience Through Reuse
A one-day industry event exploring how reuse can reduce risk, create more resilient supply chains, and unlock value.
📍 The British Library Knowledge Centre
National Tree Officers Conference 2026
National conference for professionals managing urban trees and public tree assets.
📍 Cutlers' Hall, 7-15 Church Street, S1 1HG