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.
The stark message from António Guterres follows a year of global upheaval, with the coronavirus pandemic causing governments to shut down whole countries for months at a time, while wildfires, hurricanes and powerful storms have scarred the globe.