Car-free day encourages motorists to refrain from using their car for a day.  Most cities have their own websites for car-free day – here is one for the world.

World Environmental Health Day addresses environmental health inequalities. While environmental health may be concerned primarily with the impacts of environmental stressors on health, these in turn are heavily influenced by and frequently reflect economic and social factors.

World Rivers Day is a global celebration of the world’s waterways. WRD highlights the importance and value of rivers and strives to encourage increased stewardship of the world’s rivers. Go out there and adopt a river 🙂