Make every effort to stop cutting the Trees/Green world, It takes more than a decade to for a Sapling to become a Tree.
Plant a sapling, take care of it, it will take care of us for decades or may be centuries.
3/4 of our Planet is Water, despite this we are facing shortage of water in various parts of the world. 1. Please use Water judiciously. 2. Preserve it. Good is rainwater harvesting and rainwater storage. 3. Make it: believe it or not Creating and Preserving our forests are the best way for this.