The refugees arriving on our shores in "small boats" are as nothing compared to the mass movement of people that is inevitable in the next fifty years or so as their countries become uninhabitable. The benign lifestyle of so many of us in the west over the last sixty or seventy years is coming to an abrupt end. Unfortunately, our blameless children and grandchildren will be the ones who will reap the whirlwind, while we, the perpetrators of the disaster who have done nothing to avert it, will be resting easy in our graves.