WORLD LAKE DAY
AUGUST 27
A lake is a body of standing freshwater or saline water, typically surrounded by land, that supports diverse ecosystems and provides important resources for humans, including drinking water, recreation, fisheries, and flood regulation. Lakes vary widely in size, depth, and origin—formed by glacial activity, tectonic movements, river oxbows, or human-made damming—and their physical and chemical characteristics influence water quality, habitat health, and nutrient cycling. Healthy lakes sustain aquatic plants, fish, and bird populations, help sequester carbon, and buffer local climates, while degraded lakes face threats from pollution, invasive species, eutrophication, and altered hydrology, requiring coordinated conservation and management efforts to protect their ecological and societal values.
World Lakes Day, observed annually, highlights the ecological, cultural, and economic importance of lakes worldwide and calls attention to the urgent need for their protection and sustainable management; it encourages governments, communities, scientists, and businesses to collaborate on monitoring water quality, restoring habitats, reducing pollution and invasive species, and adapting to climate-driven changes in water levels and biodiversity so that lakes continue to provide clean water, food, recreation, and cultural value for present and future generations.
Some Facts On Lake
Lakes cover about 3% of Earth's land surface.
Freshwater lakes hold roughly 90% of the world’s liquid freshwater available for ecosystems and human use.
Lakes form by tectonic activity, glacial carving, volcanic craters, river oxbows, landslides, or human-made dams.
Lakes range from oligotrophic (low nutrients, clear, high oxygen) to eutrophic (high nutrients, productive, often low oxygen).
Lakes provide ecosystem services: drinking water, irrigation, fisheries, recreation, flood control, and habitat for wildlife.
Ways To Promote This Day
Organize lake events (cleanups, guided walks, family education) with schools, NGOs, and businesses to boost participation and stewardship.
Run a coordinated media campaign with a unified hashtag, shareable visuals, and short videos on water quality, invasive-species prevention, and responsible recreation.
Provide partner toolkits (press releases, event checklists, volunteer signup templates, signage, and age-appropriate lesson plans) for easy Lakes Day hosting.
HOW CAN I GET INVOLVED?
Volunteer: Join us in our efforts to promote environmental awareness and sustainability in your community. Whether you have a few hours or a few days to spare, your help is invaluable!
Partner with Us: If you're part of a nonprofit, business, or government organization, consider partnering with the Environmental Alliance for collaborative projects or events. Together, we can make a bigger impact!
Stay Informed: Sign up for our newsletter to receive the latest news, events, and ways to participate in our initiatives.
Attend Events: Participate in our upcoming events and awareness days. Check our calendar for dates and details.
Spread the Word: Share our mission with your network. Follow us on social media and help us raise awareness about environmental issues.