COP25 Climate Summit: What was at stake at the Madrid talks?
Climate crisis has arrived and is accelerating faster than most scientists expected.
They say the global temperature is going to rise by 1.5 degrees Celsius (2.7 degrees Fahrenheit) in about 10 years and increase by 3C (5.4F) or higher by the end of this century.
Mereana Hond sets out the climate and ecological crises affecting our planet.