Fiona Harvey is an award-winning environment journalist for the Guardian. Prior to this, she worked for the Financial Times for more than a decade. She has reported on every major environmental issue, from as far afield as the Arctic and the Amazon, and her wide range of interviewees include Ban Ki-moon, Tony Blair, Al Gore and Jeff Immelt.
These are the homes that may not end up being saved because it would be very expensive to try, using measures such as seawalls and other coastal defences.
Countries must urgently agree to a way of controlling and regulating attempts to geoengineer the climate, the former head of the World Trade Organization says.
