By Md Zillur Rahaman
TODAY is World Earth Day. The day is celebrated worldwide each year to show support for the protection of the environment. It was first observed in 1970 and is now held globally by the Earth Day Network.
The UN-sponsored conference in Rio de Janeiro, Brazil, from June 3 to June 14, 1992, is known as the United Nations Conference on Environment and Development or the Earth Summit. After the long-running Cold War, the main objective of the conference was for member states to work together for sustainable