Top 10: Sustainability Events in 2025

The clock is ticking. As the urgency of climate action has ramped up, sustainability events have become the arenas in which the climate fight happens.
These events unite global leaders, innovators, activists and citizens to confront the urgent environmental and social challenges of our time.
They provide platforms for collaboration, the exchange of breakthrough ideas, and the acceleration of impactful solutions.
As the world navigates its manifold crises, these gatherings present valuable opportunities to forge the partnerships we need to engender meaningful change.
So, here are 2025’s most influential sustainability events, including COP30, Davos and Sustainability LIVE 2025.
10. 5th World Conference on Climate Change and Global Warming
- Date: 7-9 March
- Location: Vienna, Austria
- Chair: None specified
- Founded: 2021
March 2025 marks the fifth annual World Conference on Climate Change and Global Warming, scheduled to take place in Europe’s City of Music, Vienna, Austria.
The conference prides itself on delivering attendees an unparalleled learning experience in the shape of presentations on the most pressing issues of our time, all delivered by expert speakers.
Then, the conference looks to facilitate change by offering networking opportunities, where attendees can connect with an international network of academics, non-profits, businesses and government agencies.
9. Blue Earth Summit
- Date: 15-17 October
- Location: London, UK
- Chair: Julian Topham
- Founded : 2021
Blue Earth Summit is a climate conference done differently. Set up in 2021 by Linley Lewis and brothers Guy and Will Hayler, it's designed to inspire, rather than overwhelm.
“What we're trying to do is strip away the complications and focus on why businesses need to adjust,” Linley says. “The inspiration behind it is simple: protecting the planet and the environment we love to live and play in.”
Its line-up of speakers is sure to make 2025 another year to remember for its 7000 attendees.
8. GreenBiz 25
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Date: 4-6 February
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Location: Scottsdale, United States
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Chair: Joel Makower
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Founded: 1992
From 4–6 February, Scottsdale, Arizona, hosts GreenBiz 25, one of the world’s premier gatherings for corporate sustainability visionaries.
Here, the intersection of business and environmental stewardship is celebrated through incisive talks, peer collaboration and dynamic workshops.
With topics ranging from decarbonisation strategies to ESG integration and circular economies, attendees will glean actionable insights from global changemakers.
The event's hallmark is its commitment to empowering leaders to drive tangible environmental progress within their organisations.
Expect innovation and inspiration aplenty.
7. EarthX 2025
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Date: 21-25 April
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Location: Dallas, United States
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Founded: 2010
In Dallas, Texas, from 18–20 April, EarthX 2025 transforms sustainability into an electrifying celebration.
As the world's largest environmental expo (drawing around 170,000 attendees), it blends innovation with education, showcasing solutions to biodiversity loss, renewable energy adoption and water conservation.
This year, immersive exhibits and expert-led forums promise to captivate and inspire.
Known for uniting innovators, policymakers, and the public, EarthX is more than an event—it’s a movement for actionable environmental change, making every attendee a force for good.
6. Africa’s Green Economy Summit
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Date: 19-21 February
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Location: Cape Town, South Africa
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Chair: Jonathan First
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Founded: 2024
Cape Town will become a hub for green innovation from 19–21 February as it plays host to the second-ever edition of Africa's Green Economy Summit 2025.
This event brings together global financiers and African sustainability leaders, spotlighting projects ranging from renewable energy grids to eco-tourism and facilitating conversations about job creation, carbon markets and inclusive growth.
Set against the majestic Table Mountain, the summit is both a call to action and a showcase of Africa’s leadership in sustainable development.
5. London Climate Action Week 2025
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Date: 21-29 June
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Location: London, UK
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Founded: 2025
This coming June, London’s streets will hum with ambition during Climate Action Week 2025. This vibrant series of events unites businesses, activists and citizens in the fight against climate change.
From panels on net zero pathways to grassroots workshops on urban sustainability, it’s an ecosystem of progress, comprising hundreds of events, including Sustainability LIVE: London Climate Action Week.
What sets it apart is its community spirit, encouraging every Londoner to take part. As the world watches, the city’s commitment to bold climate leadership shines brighter than ever.
4. Sustainability LIVE 2025
Date:
- Sustainability LIVE: Malta (20 February)
- Sustainability LIVE: Net Zero (5-6 March)
- Sustainability LIVE Singapore (18 March)
- Sustainability LIVE Dubai (22 April)
- Sustainability LIVE Chicago (28-29 May)
- Sustainability LIVE: London Climate Action Week (26 June)
- Sustainability LIVE London (9-10 September)
- Global Sustainability & Net Zero Awards (10 September)
- Sustainability LIVE: Climate Week NYC (22 September)
- Sustainability LIVE: Diversity & Inclusion (11 November)
Location: London
Founded: 2022
Sustainability Magazine is running more live events than ever before across 2025, including conferences in New York, Chicago, Singapore and our flagship event in London.
No matter the location, Sustainability LIVE 2025 is set to bring together trailblazers from the worlds of business, tech and governance.
Sustainability experts from some of the world’s largest companies will be in attendance to deliver keynote speeches, fireside conversations, fiery panel debates, illuminating masterclasses, interactive exhibits and much more.
The Global Sustainability & Net Zero Awards will also return to London in 2025, where the industry’s most innovative luminaries are recognised for their accomplishments in a range of categories.
2025 promises to be another year of growth for Sustainability LIVE with seven events to attend across the year, both in person and online.
You won’t want to miss out on the action, so book your tickets now by following this link.
3. Climate Week NYC 2025
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Date: 21-28 September
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Location: New York
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Chair: Peter Bakker
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Founded: 2009
From September 21-28, New York City will once again become the beating heart of global climate action.
As usual, world leaders, industry pioneers and grassroots activists will meet to discuss climate justice, clean energy transitions, carbon removal technologies and plenty more.
Expect to witness vibrant discussions, cutting-edge showcases and community-led workshops, all set against the iconic NYC skyline.
For a second year running, Sustainability LIVE will host an event during Climate Week NYC, this time on September 22.
2. COP30
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Date: 10-21 November
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Location: Belém, Brazil
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Chair: Ana Toni
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Founded: 1995
Belém, Brazil, will be the epicentre of global climate negotiations when it hosts COP30 in November. This landmark event sees world leaders, activists and scientists converge to push forward the Paris Agreement’s goals.
COP30 is set to address urgent topics like carbon markets, adaptation funding and loss and damage. What makes it unique is its setting in the Amazon basin, spotlighting biodiversity’s role in climate resilience. Expect high-stakes diplomacy and a unified call for transformative action.
Running parallel to COP30 in Belém is the Sustainable Innovation Forum (SIF), an event that fuses business acumen with climate ambition.
This vibrant platform features industry giants, policymakers and innovators sharing scalable solutions for net zero. From green financing to cutting-edge technologies, the forum champions practical pathways to sustainability.
Its intimate roundtables and high-profile keynotes encourage collaboration, making SIF a crucial catalyst for change. It’s where bold ideas meet pragmatic execution, driving sustainable innovation forward.
1. United Nations Environment Assembly
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Date: December 8-12
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Location: Nairobi, Kenya
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Chair: Abdullah Bin Ali Amri
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Founded: 2012
From 3–7 March, Nairobi, Kenya, becomes the epicentre of environmental diplomacy as the United Nations Environment Assembly convenes.
Delegates from 193 nations tackle global crises like plastic pollution, biodiversity loss, and climate adaptation. What makes this assembly extraordinary is its ability to craft legally binding agreements that shape global environmental governance.
Set in Africa’s vibrant heart, the event highlights the continent’s leadership in sustainable solutions, fostering hope for a harmonious relationship between humanity and nature.
To read the full article in the magazine, click HERE.
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