Bangladesh’s Government scientists say rising seas driven by climate change are drowning the country’s densely populated coast at one of the fastest global rates, and at least a million people on the coast will be forced to relocate within a generation. After cyclone Gales tore down homes in 2007, many fishermen packed up what was left of their belongings and moved inland. A year later, the sea swallowed the area where their old home had been. We look a how Climate change is real.