Nguyen Viet Hung has been working in photography for more than 20 years. He uses photos as a means to raise public awareness about the threat of plastic waste to the environment (Photo: VNA)

After one year of preparation, Hung started his journey in 2018, travelling to 28 provinces and taking 3,000 photos along 7,000 km of coastline and 100 estuaries (Photo: VNA)

Carrying the message of 'only actions can bring about changes', Hung’s photos deeply impress viewers and spread a call for action to tackle plastic waste - a growing environmental disaster (Photo: VNA)

(Photo: VNA)

(Photo: VNA)

The photos, arranged according to topics, places and times, give an overall picture of plastic litter in the ocean in Vietnam (Photo: VNA)

(Photo: VNA)

(Photo: VNA)

Hung, who was awarded the title of Ambassador of the Ocean by the Ministry of Natural Resources and Environment, expects to have other photo exhibitions to raise public awareness about this global issue (Photo: VNA)