Prime Minister Narendra Modi on Sunday urged the people to shun low-grade plastic and polythene, saying it was creating a negative impact on the environment, wildlife and the health of the people. He asked the people to observe the World Environment Day on June 5 with vigour, and that it was time to concentrate on tree plantation. PM Modi was addressing the 44th edition of his monthly programme 'Mann Ki Baat' from All India Radio. Watch News Nation's special coverage to know more details regarding Prime Minister Narendra Modi's monthly radio programme Mann Ki Baat.