The first major conference on environment was held from June 5-16, 1972 in Sweden. It marked a turning point in the development of international environmental politics. Later in December 1972, the General Assembly adopted a resolution (A/RES/2994 (XXVII)) designating June 5 as World Environment Day.
The theme for World Environment Day this year is Air Pollution.
Why do you need to care about air pollution? Read more here: “Five reasons you should care about air pollution”. Around 4 million (out of approximately 7 million) people who died from air pollution-related diseases every year live in the Asia-Pacific region.
Richard Jeo's blog 