Climate Conference Madrid
COP25 really is the 'point of no return' in the climate emergency. Around 25,000 people from 200 countries are descending on Madrid this week to attend the COP25 climate change conference. They include dozens of heads of state and government, business leaders, scientists and, of course, activists -- including Swedish teenager Greta Thunberg. United Nations Secretary General Antonio Guterres said Sunday that the summit marks the "point of no return" in humanity's fight against climate change.