“Hunger is the trigger to eat. Thirst is the trigger to drink water. What is the trigger for me to segregate waste?”

This question on waste segregation popped up from an audience while I was at A V Rama Rao Auditorium, Indian Institute of Science Campus, Bengaluru, on January 30. I was moderating the inaugural session of “The Science of Sustainable Urban Living” conceived and executed by Bangalore Apartment Federation, Bengaluru Science and Technology (BeST) Cluster—an initiative by the Office of the Principal Scientific Adviser to the Government of India, Science and Technology Cluster.