"Back in our day," one can often hear a pensioner say, "it was never this hot in the month of April".
There was a time when winter marked its onset in the end of October.
"But now it's four months of winter and eight months of summer," the old-timer will say, if asked about the sizzling heat that Delhi has been reeling under this June.
But the weather is not an issue that seems to engage many among the younger generation, as temperature increases, weather patterns change and rains fall irregularly.
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"In the digital age, even conservation is restricted to social media platforms and posters. People have almost forgotten what it means to be in the fields working towards real time and result oriented conservation work," he says.
It is "imperative" to do more for the environment, he says.
"Our future is at risk; hence it is imperative that we all do something. Environment conservation today is not a choice or compulsion, it is common sense," he adds.
A "manipulative industry", he says, portrays games or television shows as stressbuster, but "grass, water, trees, hills and mountains are the real natural stressbusters".
Sitting in a far-flung village in Alwar, where he works to conserve water, environmentalist Rajendra Singh feels that people need to know about "honest and practical work" being done on the ground.
"When governments or other organisations hold events for environment day, the common public already knows that it is just a formal talk. Nothing has ever changed by showing concern or holding an event," he says.
Krishnamurthy also stresses the need for community participation.
"Community participation is the key to the sustainability of any given project. We can clean a dirty lake in no time, but with the same force it gets dirty again as there is very little community involvement," he says.
Singh says the bias in favour of city dwellers has to go. "Those who live in cities pollute and exploit water and nature, yet they are the ones who get heard first and get basic amnesties such as cheaper water," he says.
Krishnamurthy believes that the younger generation needs to be sensitised about the environment.
"Education system needs to have greater focus on sensitising students towards climate change, pollution impacts and the need for conservation. Students have to be empowered into social leaders who are capable of becoming change makers for the larger good," Krishnamurthy says.
While Shetty suggests students be taught in a garden once a week and taken on field trips, Singh believes they have to taught how their lives relate with nature.