India, Dec. 15 -- India's environmental landscape is changing rapidly. The country has made strong strides in expanding renewable energy, strengthening waste-management frameworks and improving monitoring systems, yet the scale of its population and urban growth means there is still work to be done. This is where schools are quietly stepping in. Across cities and small towns, classrooms are becoming early training grounds for thoughtful, environmentally conscious citizens. And the approach is simple: let children learn by doing.

Today's students are growing up in a world where sustainability is not an abstract ideal. It is linked to the air they breathe, the water they use and the waste they see around them. Schools have recognised this ...