A photo exhibition showcasing the impact of climate change in Cambodia, Laos, Thailand, and Vietnam opened in Vietnam's Mekong Delta city of Can Tho on June 25.

While unprecedented environmental challenges threatening the health and lives of millions of people around the world are ringing alarm bells for human behaviour towards the nature, Vietnam is home to a primeval forest described as a “big school” that has helped spread the love for nature for the past nearly six decades.