Climate Events

International Day of Awareness on Food Loss and Waste Reduction

Food loss poses a threat to the health of the planet and humanity. While 735 million people go hungry globally, food loss and waste undermine the sustainability of our food system. Producers and consumers alike must act now to combat food loss and reduce waste.

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World Cleanup Day

Waste created by overconsumption overwhelms waste systems and pollutes oceans. Along with responsible consumption, waste reduction and clean-up initiatives provide invaluable opportunities to reduce the solid waste that plagues our planet.

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UNFCCC Climate Week

The UNFCCC Climate Weeks bring together representatives of Parties and non-Party stakeholders in a global space and offer a unique opportunity to link the intergovernmental process and the discussions that will feed into COP with the real needs of implementation, while enabling the consolidation of activities to increase efficiency and impact

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International Day of Clean Air for Blue Skies

Air pollution is the biggest environmental health risk of our time. It exacerbates climate change, causes economic losses, and reduces agricultural productivity. But solutions are at hand and are proving to benefit human health and our climate, while making economies more resilient and prosperous.By tackling air pollution proactively, we can achieve transformative change and secure healthy air for all.

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UNCCD 17th session of the Conference of the Parties

Land degradation is already affecting up to 40 per cent of the world’s land, with far-reaching impacts on food production, water availability, livelihoods and economic stability. The 17th session of the Conference of the Parties (COP17) to the United Nations Convention to Combat Desertification (UNCCD) offers a pivotal moment for countries and partners to strengthen implementation and mobilize greater investment in drought resilience and sustainable land management.

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International Youth Day

Climate action is vital for creating a brighter future for the world’s youth. At the helm of climate preservation efforts, young leaders drive outcomes by bridging optimism with community-based action. Listen to the world’s youth today for a better tomorrow.

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International Day of the World’s Indigenous Peoples

Across the globe, Indigenous Peoples maintain distinct social and cultural practices that facilitate invaluable conservation outcomes and sustainable use of natural resources. The International Day of the World’s Indigenous Peoples highlights the need to protect their rights, celebrate their unique and rich cultures, and recognize their achievements and contributions to preserving the world’s precious ecosystems.

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International Day Conservation Mangrove Ecosystem

Mangroves function as unique, protective ecosystems between land and sea, supporting biodiversity, enhancing food security, and acting as natural defenses against storms. Despite this, mangrove coverage has been reduced by 50 per cent in the past 40 years.

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International Day of Combating Sand and Dust Storms

Sand and dust storms (SDS) present a formidable and wide-spread challenge to achieving sustainable development in its economic, social and environmental dimensions. Sand and dust are integral parts of Earth’s bio-chemical cycles, but at least 25 per cent of global dust emissions originate from human activities.

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High-level Political Forum on Sustainable Development

The High-Level Political Forum (HLPF) on Sustainable Development 2026 centers on “Transformative, equitable, innovative and coordinated actions for the 2030 Agenda for Sustainable Development and its Sustainable Development Goals for a sustainable future for all.” The 2026 HLPF with full appreciation for the integrated, indivisible and interlinked nature of the Sustainable Development Goals (SDGS), will conduct in-depth reviews of SDGs 6, 7, 9, 11, and 17.

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Innovate4Cities Conference

The 2026 Innovate4Cities Conference (I4C26) brings together governments, academia, civil society, and industry to bolster city climate action. Learn more about what cities around the world are doing to address climate change here.

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World Day to Combat Desertification and Drought

In many parts of the world, climate change is making droughts longer, more frequent and intense. Investing in drought resilience and land restoration is critical to protecting lives and livelihoods. Learn why land is critical to addressing climate change here.

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64th Sessions of the UNFCCC Subsidiary Bodies

The 64th Session of the UNFCCC Subsidiary Bodies brings together Parties to discuss best climate practices, sustainable climate finances, and new technology. The session will push forward the year’s climate agenda ahead of COP31 in Antalya, Turkïye. Learn more here.

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World Oceans Day

The ocean generates 50 per cent of the oxygen we need, absorbs 25 per cent of all carbon dioxide emissions and captures 90 per cent of the excess heat generated by these emissions. Protecting the ocean from climate change impacts is vital.

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World Environment Day

With rising temperatures, collapsing ecosystems, and disruptive weather extremes, humanity stands at a tipping point. World Environment Day 2026 focuses on the urgency of climate action, underscoring the need to rethink the systems that power our economies and repair our relationship with the climate.

World Bicycle Day

The world’s roadways are clogged with vehicles, most of them burning diesel or gasoline. Walking or riding a bike instead of driving will reduce greenhouse gas emissions — and help your health and fitness. Everyone can help limit climate change.

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International Day for Biological Diversity

Climate change is affecting biodiversity, altering marine, terrestrial, and freshwater ecosystems around the world. Conserving and restoring natural spaces, both on land and in the water, is essential to limit carbon emissions and adapt to the changing climate. Learn how the UN is tackling climate change and biodiversity together here.

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International Mother Earth Day

From extreme heat and rising sea levels to biodiversity loss and pollution, Mother Earth is in peril and making a clear call to all of us to take urgent climate action. On Earth Day, speak up and take action to help save our planet with the UN's ActNow campaign.

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World Health Day

Climate change is a major threat to people’s physical and mental health. Between 2030 and 2050, climate change is expected to cause approximately 250,000 additional deaths per year from malnutrition, malaria, diarrhea and heat stress. Learn more about how climate change impacts our health here.

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World Meteorological Day

Strengthening early warning systems is critical to protecting people against the more frequent and intense extreme events caused by climate change. Learn more about early warning systems and why they are an essential part of adapting to climate change here.

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