Since the Industrial Revolution, the average temperature of the planet has risen by around 1°C. This is a rapid change in terms of our global climate system. Previously, natural global changes are understood to have happened over much longer periods of time. It is also important to remember that the world is not warming evenly, so the temperature increase is higher than 1°C in some countries.
This graph shows the average global temperature for each month, from 1850 to 2017. Time moves forward and the temperature increases as you move away from the centre of the circle.