Additionally, we need think tanks looking at out-of-the-box solutions. Many such ideas could be the ‘butterfly effect’ for major improvements. An Indian Oil (the Indian Oil building in Madangir, where every window has a shade that is a solar panel) or an ITC can create the example of world renowned ‘green’ buildings. All these are seeds of change being sowed in our metropolis. Just as NGOs have worked relentlessly to change the mindset of the young with regard to water conservation or banning the burning of Diwali crackers, we must increase their interest in, and knowledge of trees. Kew Gardens in London attracts huge numbers of schoolchildren and I remember them staring in awe at the amazing collection of tropical and temperate plants in large glasshouses. We could apply this to our city and perhaps adopt the Deer Park or the green belt along the Yamuna and turn them into beautiful botanical gardens which could be self-sustaining tourist locations. We have only one Sundar Nagar nursery, which is an amazing nursery – let us make two such nurseries and have a more vigorous environment. The British did their research well and planted shade-giving trees along the roads – trees such as tamarind and jamun. But we could plant trees with fragrant flowers – why do we plant cassia when we could plant kachnar, karaunda, jungli ber? They are all hardy and do not require regular watering.