IWA connects water professionals around the globe - integrating the leading edge of professional thought on research and practice, regulators and the regulated, across national boundaries and across the drinking water, wastewater and stormwater disciplines.

Collective of over 200 groups around the world pledged to defend watersheds. They strive to eliminate the impact of factory farms on waterways, protect and enforce environmental laws, and decrease dependency on fossil fuels. Learn how to become a Waterkeeper or find the one nearest you.

A charity dedicated to helping people escape the stranglehold of poverty and disease caused by living without safe water and sanitation. WaterAid works in partnership with local organizations in 35 countries to help poor communities establish sustainable water supplies and latrines. A link to each country reveals its statistics and unique stories. WaterAid also works to influence governments’ water and sanitation policies to serve the interests of vulnerable people.

A global organization with the vision of a world of healthy, protected oceans with wild and flourishing ecosystems, free of pollution, and filled with diverse and abundant marine wildlife. Nearly a million members, many of whom participate each September in the group's International Coastal Clean-up Day.