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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.

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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.

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.

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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¡ã°ä, the presentation of new national action plans (NDCs) and the progress on the finance pledges made at COP29.

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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.

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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.

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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.

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.

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World Habitat Day

This year¡¯s World Habitat Day is devoted to addressing multiple crises that affect urban areas ¡ª including the climate crisis ¡ª and highlighting effective responses. Learn how cities around the world are addressing climate change impacts here.

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International Day of Awareness on Food Loss and Waste Reduction

Over , 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.

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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 ¨C 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.

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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.

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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.

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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.

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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.

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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.

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World Cleanup Day

The fashion industry generates 92 million tonnes of textile waste each year, overwhelming waste systems, polluting waterways, and producing greenhouse gas emissions that fuel the climate crisis. This year¡¯s World Cleanup Day highlights the urgent need to shift habits toward responsible consumption and strengthen waste management systems.

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International Day for the Preservation of the Ozone Layer

The , adopted in 1987, united the world to phase out ozone-depleting substances and put the ozone layer on a path to recovery. The International Day for the Preservation of the raises awareness on the role of the ozone layer in protecting life on Earth

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International Day of Clean Air for Blue Skies

Almost the entire global population (99 per cent) breathes air that exceeds WHO air quality limits, and threatens their health. The global cost of is estimated at $8.1 trillion a year, equivalent to 6.1 per cent of global GDP. Shifting away from fossil fuels and investing in renewable energy could prevent 1.2 million deaths a year resulting from exposure to fossil fuel-derived pollution.

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World Lake Day

Lakes are crucial for freshwater, biodiversity, and climate regulation. But overuse, pollution and climate change are affecting these vital natural resources. On this first World Lake Day, take a look at the with key data on the health of millions of lakes, rivers and wetlands on Earth.

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