'Our house is on fire': Greta Thunberg, 16, urges leaders to act on climate

Swedish school strike activist demands economists tackle runaway global warming. Read her Davos speech here

Our house is on fire. I am here to say, our house is on fire.

According to the IPCC (Intergovernmental Panel on Climate Change), we are less than 12 years away from not being able to undo our mistakes. In that time, unprecedented changes in all aspects of society need to have taken place, including a reduction of our CO2 emissions by at least 50%.