Top 25 events for environmental communicators in 2025
Shireen Noushad
2025 is a pivotal year for climate action, demanding urgency, strategy and engagement. That’s why we’ve created this essential events calendar for those that work across environmental communication.
Driving real change requires diverse voices, bold ideas and effective communication to make an impact. Across the year, leaders, scientists and policymakers will gather to turn ambition into ideas and action. This definitive round-up highlights the key events to attend, watch and track – crucial forums where global climate decisions take shape. These aren’t just meetings and events, they are arenas for collaboration and progress.
March
1. World Sustainable Development Summit
Where: New Delhi, India
When: 5 – 7 March, 2025
Who for: Sustainability professionals, policymakers, and corporate leaders focused on energy and climate strategy
This summit is a leading global platform that brings together policymakers, researchers, and business leaders to discuss sustainable development and innovative climate solutions.
The event is set to offer insights into global energy transition strategies, enabling them to engage in high-level policy discussions and connect with sustainability professionals shaping the future of clean energy.
Know more and book your slot: World Sustainable Development Summit
2. Climate and Clean Air Conference 2025
Where: Brasília, Brazil
When: 16 – 21 March, 2025
Who for: Environmental scientists, policymakers, climate advocates, and health professionals
The conference focuses on advancing the science, policy, and actions needed to reduce air pollution and address climate change. It brings together country representatives, global experts, and changemakers to drive accelerated solutions for mitigating pollutants and safeguarding the planet.
Attendees will hear from experts on the intersection of air quality and climate action, explore solutions for cleaner air, and network with key stakeholders.
Know more and book your slot: Climate and Clean Air Conference 2025
3. Nature Tech Summit
Where: London, United Kingdom
When: 27 March, 2025
Who for: Environmental tech developers, conservationists, and sustainability strategists.
The Summit is a gathering focused on leveraging technology to protect and restore ecosystems. It features advancements in biodiversity monitoring and nature-based solutions, offering attendees the chance to explore innovative approaches to conservation technology, learn from real-world case studies, and connect with experts shaping the future of nature tech.
Know more and book your slot: Nature Tech Summit
April
4. Global Youth Climate Summit
Where: Federal University of Minas Gerais, Brazil
When: 2 – 5 April, 2025
Who for: Young climate activists
This summit is a global platform for young leaders to discuss climate change and the role of young people in shaping sustainable solutions.
The summit will bring together 500 youth from across the Global South and beyond to expand their knowledge about climate science, build their leadership skills, and support them in their climate action initiatives. It will offer opportunities to learn from experts and each other while developing solutions to protect biodiversity across all ecosystems.
Know more and book your slot: Global Youth Climate Summit
5. US Climate Action Summit
Where: Washington D.C, United States
When: 21 – 27 April, 2025
Who for: Policymakers, activists, corporate sustainability leaders, and environmental NGOs
The US Climate Action Summit 2025 is dedicated to accelerating climate action in the United States. Stakeholders from across sectors come together to discuss innovative solutions and policies. The summit features engaging events, including Climate and Health Day on April 22 and The Leaders’ Forum on April 24.
Attendees will have the chance to engage in high-level discussions, understand US-specific climate challenges, and connect with leaders in the climate movement.
Know more and book your slot: US Climate Action Summit
6. International Summit on the Future of Energy Security
Where: London, United Kingdom
When: 24 – 25 April, 2025
Who for: Global energy leaders, policymakers, and decision-makers
The Summit will explore key geopolitical, technological, and economic factors shaping the future of energy security—covering everything from fuel supply and trade to the critical minerals needed for clean energy technologies.
With the world facing rapid shifts in energy demand, supply chains, and security risks, this Summit offers a unique opportunity to engage with top policymakers and experts. Those attending will be able to dive into the emerging risks and strategies to ensure stable, resilient, and sustainable energy systems worldwide.
Know more and book your slot: International Summit on the Future of Energy Security
7. Our Ocean Conference
Where: Busan, Korea
When: 28 – 30 April 2025
Who for: Marine and coastal conservationists, NOGs, policymakers, Government bodies
The conference is dedicated to addressing ocean conservation, focusing on marine pollution, biodiversity, and sustainable ocean management. The 10th conference, themed ‘Our Ocean, Our Action’, will promote global actions for a sustainable ocean, with a special focus on ‘Ocean Digital’ as a means to drive action.
Delve into ocean conservation policies, hear from global leaders, and collaborate on actionable solutions for ocean sustainability. If you’re passionate about ocean conservation and want to contribute to a sustainable ocean future, this conference is a must-attend.
Know more and book your slot: Our Ocean Conference
8. Innovation Zero
Where: London, United Kingdom
When: 29 – 30 April, 2025
Who for: Business leaders, tech innovators, and government advisors
Innovation Zero is a dynamic conference focused on climate technology and breakthrough solutions to achieve net-zero emissions. Climate tech innovators will display their latest advancements in carbon capture and storage, while also networking with corporate sustainability leaders and policymakers to explore future collaboration opportunities.
Know more and book your slot: Innovation Zero
May
9. UN Forum on Forests
Where: New York, United States
When: 5 – 9 May, 2025
Who for: Professionals in forest management, conservation, or policy,
The UNFF is a functional commission of ECOSOC with universal membership. Since its establishment in 2000, the Forum has set many milestones including the first UN Forest Instrument in 2007, the Global Forest Financing Facilitation Network (GFFFN) in 2015, and adoption of the first UN Strategic Plan for Forests 2030 and its six Global Forest Goals in 2017. The discussion will be around global forest policies, explore innovative forest solutions, and meet experts in sustainable forestry.
Know more and book your slot: UN Forum on Forests
10. One Planet Network’s Sustainable Food Systems Programme
Where: Brasilia, Brazil
When: 27 – 29 May, 2025
Who for: Food industry leaders, policymakers, and researchers focused on sustainability
This Programme is a major global initiative that promotes sustainable food production, responsible consumption, and cross-sectoral food policy dialogues. Their goal is to transform food systems for a more sustainable and equitable future.
At this event, you’ll come across innovative models for food system transformation, engage with leading organizations on sustainable practices, and discover collaboration opportunities in the food sector.
Know more and book your slot: One Planet Network’s Sustainable Food Systems Programme
June
11. UN Ocean Conference
Where: Nice, France
When: 9 – 13 June, 2025
Who for: Marine and coastal conservationists, NOGs, policymakers, Government bodies
UNOC focuses on accelerating action to conserve and sustainably use the oceans. The Conference aims to support further and urgent action to conserve and sustainably use the oceans, seas and marine resources for sustainable development and identify further ways and means to support the implementation of SDG 14.
There will be high-level discussions on ocean policy, engagement opportunities with experts on marine conservation, and explore solutions to protect our oceans. The conference is designed to foster a global dialogue and collaborative action on ocean sustainability, making it relevant for anyone involved in ocean science, conservation, policy, or advocacy.
Know more and book your slot: UN Ocean Conference
12. G7 Summit
Where: Kananaskis, Alberta
When: 15 – 17 June, 2025
Who for: Government leaders, corporate sustainability professionals, and policy strategists
The G7 Summit is a crucial meeting of the world’s largest economies where key climate and sustainability commitments are made. As the 2025 G7 host, Canada will demonstrate leadership and advance meaningful dialogue, collective action, and innovative solutions.
Attendees will get an inside look at major climate finance initiatives, understand regulatory trends, and connect with policymakers shaping global sustainability strategies.
Know more and book your slot: G7 Summit
13. United Nations Framework Convention on Climate Change
Where: Bonn, Germany
When: 16 – 26 June, 2025
Who for: Policymakers, diplomats, climate activists, and international NGOs
The 62 sessions of the Subsidiary Body for Scientific and Technological Advice and the Subsidiary Body for Implementation (SB 62) of the UNFCCC is an ongoing climate summit focused on negotiations, partnerships, and policies aimed at addressing global climate change.
This summit provides a crucial platform for international collaboration and policy development on climate action, making it relevant for anyone invested in the global fight against climate change.
Know more and book your slot: United Nations Framework Convention on Climate Change
14. London Climate Action Week
Where: London, United Kingdom
When: 21 – 29 June, 2025
Who for: Government officials, business leaders, environmental organizations, and climate activists
London Climate Action Week (LCAW), brings together leaders from governments, businesses, and civil society to collaborate on sustainable solutions. Now in its 7th year, LCAW is the largest city-wide climate festival in Europe, attracting over 45,000 people annually. LCAW provides a brand and platform under which hundreds of stakeholders host their events, creating a large and vibrant programme of climate-focused activities.
Know more and book your slot: London Climate Action Week
July
15. Marine Protected Areas in Marine Spacial Planning Conference
Where: Bode, Norway
When: 9 – 12 July, 2025
Who for: Marine and coastal conservationists, scientists, NOGs, policymakers, Government bodies
The MPA in MSP Conference explores the latest updates and scientific advances in marine biodiversity conservation. The conference covers topics such as MPA planning, climate change effects on marine biodiversity, blue carbon science, and spatial planning benefits. Immediately before the conference, the 58th European Marine Biology Symposium will also be hosted in Nice.
Attendees will learn about the latest advancements in marine protection, hear from experts in ocean management, and engage with global leaders in marine conservation. This conference is tailored for those working at the forefront of marine conservation science and policy, providing a platform for knowledge exchange and collaboration.
Know more and book your slot: MPA in MSP Conference
16. 15th Meeting of the Conference of the Contracting Parties
Where: Victoria Falls, Zimbabwe
When: 23 – 31 July, 2025
Who for: Marine and coastal conservationists, NOGs, policymakers, Government bodies
AKA COP15 brings together parties involved in international environmental agreements, particularly focusing on marine protection and coastal ecosystems.
You can be part of critical discussions on marine conservation, learn about global efforts to protect oceans, and meet international experts. This meeting is essential for anyone dedicated to marine conservation and international collaboration for ocean protection.
Know more and book your slot: 15th Meeting of the Conference of the Contracting Parties
17. UN Food Systems Summit +4 Stocktaking Moment
Where: Addis Ababa, Ethiopia
When: 28 – 30 July, 2025
Who for: Agribusiness leaders, policymakers, and sustainability professionals
The 2nd United Nations Food Systems Summit Stocktake (UNFSS+4) is set to take place with the 2030 Agenda deadline approaching, UNFSS+4 will be a critical platform for documenting progress, strengthening accountability, and unlocking investments for transformative action.
The event offers opportunities to showcase successful transformations, highlight innovations, address challenges, and explore public-private partnerships and climate finance.
Know more and book your slot: UN Food Systems Summit +4 Stocktaking Moment
September
18. Africa Food Systems Forum
Where: Dakar, Senegal
When: 1st week of September, 2025
Who for: Farmers, agribusiness professionals, and development agencies
The forum aims to scale up efforts to build healthier, more inclusive, sustainable, resilient, and equitable food systems that can accelerate the achievement of the Sustainable Development Goals (SDGs) in Africa by 2030.
The forum’s mission is to inform, influence, and catalyze the transition to sustainable, resilient, and inclusive food systems, embracing new technologies and ways of thinking to meet the challenge of taking Africa’s food systems from shortage to surplus. You can explore climate-smart agriculture strategies, engage with key players in African food systems, and gain insight into emerging food security policies.
Know more and book your slot: Africa Food Systems Forum
19. New York Climate Week
Where: New York, United States
When: 21 – 28 September, 2025
Who for: Climate policy leaders, activists, business executives, and sustainability professionals
New York Climate Week has become a key annual event for galvanizing action on climate change, with the 2024 edition featuring over 500 events and attracting significant media attention. This year’s focus is expected to be on the implementation of the Paris Agreement and the mobilization of finance for climate action.
You will witness the latest climate policies and innovations in clean energy, and have opportunities for collaboration with key global actors. New York Climate Week offers a unique platform to engage with the global climate community and contribute to the transition towards a sustainable future.
Know more and book your slot: New York Climate Week
20. World Biodiversity Conference
Where: London, United Kingdom
When: 25 September, 2025
Who for: Scientists, conservationists, corporate sustainability leaders, and policymakers
The World Biodiversity Summit, a critical conference bringing together global experts to address biodiversity conservation and policy development, returns for its 5th edition. This year’s summit will continue to engage businesses, governments, civil society, and financial institutions to bolster support for nature, mitigate climate and biodiversity risks, and amplify business opportunities on a larger scale.
You get to be a part of cutting-edge research on biodiversity protection, discuss international conservation efforts, and network with leading policymakers and researchers.
Know more and book your slot: World Biodiversity Conference
October
21. International Union for Conservation of Nature World Congress
Where: Abu Dhabi, United Arab Emirates
When: 9 – 15 October, 2025
Who for: Conservation scientists, ecologists research ecosystems, wildlife and marine biologists, policy analysts and NGO representatives
The IUCN Congress 2025 is held every four years and brings together world leaders and representatives from governments, science, academia, Indigenous peoples’ groups, non-governmental organisations, regional and local authorities and businesses to help address the world’s most pressing environmental and sustainability challenges.
Attendees will gain insight into groundbreaking conservation efforts, explore opportunities for biodiversity protection, and network with environmental leaders. This congress is a must-attend for anyone dedicated to protecting biodiversity and advancing conservation efforts, offering a unique opportunity to shape the future of conservation.
Know more and book your slot: International Union for Conservation of Nature World Congress
22. Bloom
Where: San Jose, California
When: 28 – 30 October, 2025
Who for: Conservationists, policymakers, and sustainability professionals from NGOs and the corporate sector
A flagship event dedicated to biodiversity and nature-based solutions, a space where conservation, rewilding, and ecosystem restoration are discussed, innovation meets traditional knowledge, art meets science, and companies find inspiring solutions to pressing conservation and restoration challenges.
Bloom offers valuable insights into nature-positive business practices, showcases the latest innovations in biodiversity protection, and provides opportunities to engage with experts in conservation and ecological restoration.
Know more and book your slot: Bloom
November
23. Energy Innovation Summit
Where: Glasgow, Scotland
When: 5 – 6 November, 2025
Who for: Energy sector professionals, investors, and corporate sustainability leaders
The summit is a premier event showcasing advancements in clean energy technology and market innovations that drive the transition to a low-carbon economy. As an attendee, you will explore the latest renewable energy solutions, discover investment opportunities in the clean energy sector, and engage with top experts on energy innovation.
Know more and book your slot: Energy Innovation Summit
24. UNFCCC COP 30
Where: Belém, Brazil
When: 10 – 21 November, 2025
Who for: Policy advisors, corporate sustainability leaders, and environmental NGOs
The UNFCCC COP 30 is the most influential climate negotiation event of the year. Governments and businesses come together at COP 30 to set the agenda for climate action and forge a path towards a sustainable future.
Attendees will be part of global climate negotiations, gain insights into policy shifts, and connect with world leaders shaping environmental regulations. The event is an opportunity to contribute to the global dialogue on climate change and collaborate on solutions for a more sustainable future.
Know more and book your slot: UNFCCC COP 30
25. G20 Summit 2025
Where: Johannesburg, South Africa
When: 22 – 23 November, 2025
Who for: Policymakers, corporate sustainability leaders, and climate finance professionals
The G20 Summit 2025 is a gathering of world leaders focused on global economic and climate policy, the summit is set to shape international sustainability commitments.
The Summit will be around climate finance, understanding how global policy will shape corporate sustainability, and engaging with influential decision-makers. Policymakers, corporate sustainability leaders, and climate finance professionals will have the opportunity to network, collaborate, and contribute to the global dialogue on climate action.
Know more and book your slot: G20 Summit 2025
What next?
These events represent only a fraction of the critical climate conferences and summits shaping global policy. If you want to add your event to the calendar, contact us. As leaders and communicators, it is essential to stay informed on the latest developments and events provide an unrivalled space to do this.
Mark your calendars, register early and get ready to make a difference!
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