In the national capital to control the malice of air pollution, various agencies of the Union and Delhi governments will plant 31L saplings of various native species from July 15. Which will shield Delhi from the frequent dust storms coming from Rajasthan? The barrier would come up where Delhi shares borders with Haryana, Rajasthan, and UP. After research, trees like "pilkhan, goolar, mango, mahua" were shortlisted, since they grow tall and have a dense canopy. It'd prevent dust particles from rising above in the sky. Other trees like " Banyan, berry, peepul, neem, amla, jamun," have been chosen for their oxygen-supplying ability. DDA will plant the maximum number of trees among the agencies,, followed by the Forest Department (4.22 lakh), the three municipal corporations of Delhi (4 lakh), NDMC (3 lakh) and CPWD (35,000). The agencies are also to maintain the trees for two years. In a recent study, Forest Survey of India (FSI) revealed that tree cover in Delhi has been steeply declining, so much so that it now has less than one tree per person. However, the forest-cover of Delhi has seen a marginal increase lately. Last week, LG Anil Baijal officially cancelled the previous decision to cut down almost 3,000 trees to make way for seven central-government colonies.