From showcasing climate action to taking ambition to the next level, climate events provide space for knowledge exchange and discussions to strengthen the Paris Agreement’s implementation.
Climate Events
21 Mar 2026
09:00
Global
International Day of Forests
Forests are one of the planet’s most powerful tools against climate change, removing carbon dioxide from the atmosphere and releasing oxygen. By locking carbon pollution in trees, roots and soil, forests reduce the heat-trapping gases and regulate Earth’s temperature. Learn more about forests here.
02 Feb 2026
09:00
Global
World Wetlands Day
Wetlands are vital for biodiversity, climate mitigation and adaptation and freshwater availability. Yet, nearly 90 per cent of the world’s wetlands have been degraded since the 1700s. World Wetlands Day 2026 highlights the role of traditional knowledge in sustaining wetland ecosystems and preserving cultural identity.
11 Dec 2025
09:00
Global
International Mountain Day
Glaciers’ melting, driven by rising global temperatures, is increasing flood and landslide risks, threatening billions of peoples’ lives. This International Mountain Day highlights the key role mountain regions play as sources of freshwater and calls for immediate measures to avoid glaciers’ disappearance.
10 Dec 2025
09:00
Global
Launch of the International Decade of Sustainable Transport
Decarbonizing the transport sector – responsible for roughly 15 per cent of total greenhouse gas emissions – is vital to limit global warming. Starting in 2026, the UN Decade of Sustainable Transport will be an opportunity to advance sustainable transport globally.
08 Dec 2025 to 12 Dec 2025
09:00 to 22:00
Nairobi, Kenya
Seventh session of the United Nations Environment Assembly (UNEA-7)
The seventh session of the UN Environment Assembly focuses on the need to accelerate sustainable solutions and effective responses for a safer and more resilient planet, focusing on healthy ecosystems, sustainable consumption and production, and technological tools to prevent environmental risks.
05 Dec 2025
09:00
Global
World Soil Day
Over 95 per cent of our food comes from soils, but climate change and human activities are degrading them. Sustainable soil management practices help preserve biodiversity, improve fertility, and contribute to carbon sequestration, playing a crucial role in the fight against climate change.
26 Nov 2025
09:00
Global
World Sustainable Transport Day
The transport sector accounts for roughly 15 per cent of total greenhouse gas emissions, making it the fourth largest source of global emissions. Without action, transport-related emissions could grow by up to 65 per cent by 2050. Decarbonizing the transport sector, through measures like electromobility and alternative fuels, is vital to limit global warming. Learn more about transport and climate change here.
06 Nov 2025 to 21 Nov 2025
09:00 to 22:00
Belém, Brazil
UN Climate Change Conference (COP30)
The 30th UN climate conference will bring together world leaders, scientists, non-governmental organizations, and civil society to discuss priority actions to tackle climate change. COP30 will focus on the efforts needed to limit the global temperature increase to 1.5°C, the presentation of new national action plans (NDCs) and the progress on the finance pledges made at COP29.
05 Nov 2025
09:00
Global
World Tsunami Awareness Day
Tsunamis threaten human life, disrupt livelihoods, industry, agriculture, gender equality, and critical services such as education and healthcare. Investments in tsunami early warning, evacuation mapping, and risk education are vital to enhance local preparedness and limit impacts. Learn more about early warning systems here.
31 Oct 2025
09:00
Global
World Cities Day
This year’s World Cities Day showcases how data-driven decision-making, technology, and AI can be used to improve urban life and recover from climate change impacts. From early warning systems to geospatial mapping, digital tools can improve basic services, strengthen urban resilience, and create greener spaces for all.
16 Oct 2025
09:00
Global
World Food Day
The food we eat, and the way it is produced, affects our health and the environment. World Food Day calls for global collaboration across governments, organizations, sectors, and communities to transform agrifood systems and ensure everyone has access to a healthy diet, living in harmony with the planet. Learn more about the links between food and climate change here.
13 Oct 2025
09:00
Global
International Day for Disaster Risk Reduction
Climate change is causing more frequent, intense and costly disasters, severely impacting nature and people. Investments in disaster risk reduction are key, but remain too low in national budgets and international assistance. This year’s International Day for Disaster Risk Reduction calls for a decisive shift: fund resilience now to avoid paying for disasters later.
06 Oct 2025
09:00
Global
World Habitat Day
This year’s World Habitat Day is devoted to addressing multiple crises that affect urban areas — including the climate crisis — and highlighting effective responses. Learn how cities around the world are addressing climate change impacts here.
29 Sep 2025
09:00
Global
International Day of Awareness on Food Loss and Waste Reduction
Over 19 per cent of food is wasted, and up to 10 per cent of global greenhouse gas emissions are associated with food that is not consumed. Reducing food loss and waste helps cut emissions and is a key element for sustainable agrifood systems, food security, nutrition and health.
27 Sep 2025
09:00
Global
World Tourism Day
Tourism can create jobs and strengthen bonds between people and places, but it can also damage the sites and communities it celebrates. Tourism must be inclusive and equitable, and must protect our planet – including by conserving biodiversity, shielding ecosystems, and reducing emissions. World Tourism Day 2025 highlights the transformative power of this sector for a more sustainable future.
25 Sep 2025
09:00
Global
World Maritime Day
The ocean provides half of the oxygen we breathe, feeds billions of people, regulates the climate, and enables more than 80 per cent of global trade through maritime transport. However, pollution, overuse and climate change are undermining this vital resource. Under the theme “Our Ocean, Our Obligation, Our Opportunity,” this year’s World Maritime Day shines a spotlight on the essential role the ocean plays in sustaining life, livelihoods, and the global economy.
24 Sep 2025
09:00
Global
Climate Summit 2025
On 24 September, the UN Secretary-General will host a Special High-Level Event on Climate Action, as a platform for world leaders to present new national climate plans and accelerate momentum, ahead of COP30. These new plans must reflect bold action for the next decade, unlocking a just, resilient and low-carbon future.
24 Sep 2025 to 25 Sep 2025
09:00 to 22:00
Global
EnergyNow SDG7 Action Forum
The 2025 edition of the Forum takes place during the UN General Assembly High-Level Week in New York. It brings together leaders and experts to push forward universal energy access and equitable energy transition.
22 Sep 2025 to 26 Sep 2025
09:00 to 20:00
Global
SDG Media Zone
Through dynamic interviews featuring experts, influencers, activists and media partners, the SDG Media Zone 2025 highlights actions and solutions in support of the SDGs.This year’s programme includes sessions on renewable energy, youth environmental leadership, climate storytelling, information integrity for climate action, and a conversation with Secretary-General’s Special Adviser on Climate Action Selwin Hart. Find out more here.
22 Sep 2025 to 30 Sep 2025
09:00 to 22:00
Global
General Assembly High-level Week 2025
This year’s high-level week of the General Assembly highlights the urgency of delivering on the promise of the Sustainable Development Goals and reinvigorating global cooperation. Under the theme “Better together: 80 years and more for peace, development and human rights,” the 80th session aims to renew global commitment to multilateralism, solidarity and shared action.
