Oh yes! 97% of scientists say that global warming is caused by humans.

But what exactly is global warming?

To make it easy: the Sun’s rays hit our planet, warm it up and bounce back into space through our atmosphere.

Certain gases, such as carbon dioxide, stop some of the rays from escaping into space and send them back to the Earth… which heats up even more.

This is the “greenhouse effect” and is quite natural. 

However, since 1850, scientists have observed that the greenhouse effect is getting much stronger and that’s not natural.

Human activity produces greenhouse gases, which build up in the atmosphere and amplify the phenomenon.