By the time you finish reading this, in about 10 minutes, 8 sq m of fertile and bio-diverse Banni grassland of Kutchh will be lost to an invading alien species of tree called Gando Baval, at the rate of about half a hectare per hour. It's an emergency of a different kind that experts have been grappling with for years. Gujarat is on the brink of an silent ecological disaster, thanks to the virtual invasion by an exotic species of vegetation called 'Prosopis Juliflora' and lack of planning to curb it.