Every year, on 14 June, countries around the world celebrate World Blood Donor Day (WBDD). The event serves to raise awareness of the need for safe blood and blood products and to thank blood donors for their life-saving gifts of blood.

World Environment Day is the most renowned day for environmental action. Since 1974, it has been celebrated every year on 5 June: engaging governments, businesses, celebrities and citizens to focus their efforts on a pressing environmental issue.