A refreshingly sweet and innocent observation by a child of an otherwise very worrying issue of—river pollution—with a heartwarming appeal for water conservation. Once upon a time, during the holidays, I was travelling from Delhi to my village nearby. On the way, we guys came across the Yamuna River. Looking at the river, my younger brother instantly commented, “It doesn’t snow in Delhi even during winters. But here, on the river, it seems to have snowed in peak summers!”... Then, I explained to him that the white foam on the river surface is not snow but the chemical effluents emitted by huge …