World Bicycle Day
Everyone can help limit climate change. From the way we travel, to the electricity we use, the food we eat, and the things we buy, we can make a difference. The world鈥檚 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 鈥 and help your health and fitness.
International Day for Biological Diversity
Climate change and biodiversity loss (together with pollution) are part of an interlinked triple planetary crisis the world is facing today. They need to be tackled together if we are to advance the Sustainable Development Goals (SDGs) and secure a livable future on this planet.
Climate Weeks 2025
The Dialogues for Ambition and Implementation will bring together representatives of Parties and non-Party stakeholders in a global space, offering a unique opportunity to link the intergovernmental process and the discussions that will feed into COP with the real needs of implementation, enabling the consolidation of activities to increase efficiency and impact.
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 influence change and help save our planet with the UN's ActNow campaign.
World Health Day
Climate change is one of the biggest health threats facing humanity. Air pollution, disease, extreme weather events, forced displacement, food insecurity and pressures on mental health are already harming health. Estimates indicate that the overall value of health gains from climate action would be approximately twice the cost of global policies to cut greenhouse gas emissions.
International Day of Zero Waste
Waste of all kinds contributes to the triple planetary crisis of climate change, biodiversity loss, and pollution. But options exist for living more sustainably. On the International Day of Zero Waste, learn about what others are doing in and how you can join them in taking action for the planet.
LDC Future Forum 2025
The Third LDC Future Forum will focus on enhancing the resilience of Least Developed Countries (LDCs) to systemic shocks, including the adverse effects of climate change and other global crises. The forum will convene policy-makers, researchers, the private sector, and other stakeholders to share concrete innovative solutions and practical policy recommendations aimed at enhancing the resilience of LDCs.
World Meteorological Day
Climate change is causing more frequent and intense extreme weather events, resulting in widespread adverse impacts and related losses and damages to nature and people. The need for early warning systems is critical to protecting lives and livelihoods, especially to those on the frontlines of the climate crisis. Learn more about early warnings systems and why they are an essential part of adapting to climate change here.
Earth Hour
Earth Hour is an opportunity to demonstrate global solidarity. It is organized under the theme 鈥渢he Biggest Hour for Earth鈥, conveying the urgency for action. As landmarks and homes across the planet take part in this iconic light off moment, the movement also encourages people to 鈥渟witch off鈥 by taking a break from their routine and doing something positive for the planet.
World Water Day
Water and climate change are inextricably linked. From unpredictable rainfall patterns to shrinking ice sheets, rising sea levels, floods and droughts 鈥 most impacts of climate change come down to water. Water is also at the heart of adaptation to climate change, serving as the crucial link between the climate system, human society and the environment. Learn more about the relationship between water and climate change here.
International Day of Forests
Preserving and restoring forests is essential for achieving the world鈥檚 climate goals. Healthy forests act as carbon sinks absorbing millions of tons of carbon dioxide each year, which helps regulate the planet鈥檚 temperature. Forests are also critical ecosystems, providing habitats for over half of the world鈥檚 land-based species and livelihoods for over one billion people. Learn more about forests, land and climate change.
World Day for Glaciers 2025
Glaciers are critical to life 鈥 their meltwater is essential for drinking water, agriculture, industry, clean energy production and healthy ecosystems. As the planet gets hotter, our frozen world is shrinking, making the water cycle more unpredictable, with profound impacts on people and the planet. We must work together to put glacier preservation at the core of our plans to tackle climate change and the global water crisis.
Sustainable Energy for All Global Forum
Energy is at the heart of the climate challenge 鈥 and key to the solution. Under the theme of 鈥淪ustainable Energy for Equity, Security and Prosperity鈥, the Sustainable Energy for All Global Forum will focus on the imperative for a just and equitable energy transition that delivers climate progress while ending energy poverty and forging development opportunities for low- and middle-income countries and Small Island Developing States.
International Women's Day
The climate crisis does not affect everyone equally. Women and girls face disproportionate impacts from climate change. Given their position on the frontlines of the climate crisis, women are uniquely situated to be agents of change to mitigate the causes of global warming and adapt to its impacts on the ground.
World Wetlands Day
Climate change is heavily impacting wetlands through more severe and frequent droughts and increased evaporation due to higher temperatures. At the same time, the loss of wetlands could worsen the impact of climate change, as these ecosystems provide essential services that mitigate the effects of climate change.
International Day of Clean Energy
Energy is at the heart of the climate challenge 鈥 and key to the solution. To avoid the worst impacts of climate change, greenhouse gas emissions need to be reduced by almost half by 2030 and reach net zero by 2050. To achieve this, we need to end our reliance on fossil fuels and invest in alternative sources of energy that are clean, accessible, affordable, sustainable, and reliable.
Launch of the International Year of Glaciers Preservation
Glaciers are crucial for regulating the global climate and providing freshwater, essential for billions of people. However, due to climate change, these vital resources are rapidly melting. The International Year focuses on providing concrete recommendations to address climate change impacts, advocating and raising funds for more ambitious action, and convening countries and communities affected by glacier loss.
UN Desertification Conference
This UN Conference will be a critical milestone in advancing global efforts to combat land degradation, desertification and drought, and promote sustainable development. Under the theme 鈥淥ur Land. Our Future,鈥 the conference will convene 196 countries and the European Union along with experts and civil society to promote urgent action. It is expected to be the largest and most ambitious summit on land and drought resilience, coinciding with the 30th anniversary of the UN Convention to Combat Desertification.
UN Climate Conference
The Conference in Baku, Azerbaijan, is expected to focus on finance, as trillions of dollars are required for countries to drastically reduce greenhouse gas emissions and protect lives and livelihoods from the worsening impacts of climate change. The conference is also a key moment for countries to present their updated national climate action plans under the Paris agreement, which must limit global warming to 1.5掳颁 above pre-industrial levels and spur investment in the Sustainable Development Goals.
UN Biodiversity Conference
The Earth鈥檚 land and the ocean serve as natural carbon sinks, absorbing large amounts of greenhouse gas emissions. Conserving and restoring natural spaces, and the biodiversity they contain, is essential for limiting greenhouse gas emissions and adapting to climate impacts.Countries will meet at the UN Biodiversity Conference in Cali, Colombia, to accelerate action under the Kunming-Montreal Global Biodiversity Framework, the reached in 2022.
