Qazi Kholiquzzaman Ahmad

A "smoking zone" in the middle of an otherwise smoke-free area does not protect people from second-hand smoke.

The 2030 Agenda for sustainable development was adopted by the United Nations General Assembly in September 2015 under the title “Transforming Our World: the 2030 Agenda for Sustainable Development.”

Increasing salinity in water in coastal areas, arsenic contamination of water, and water pollution caused by human actions are becoming increasingly serious problems.

The outcome document of Rio+20 conference held in Rio de Janeiro, Brazil in June 2012, 20 years after the Earth Summit was held

The 2015 United Nations Climate Change Conference, COP 21, held in Paris from 30 November to 12 December 2015, was the biggest event of its kind.