Researchers have identified nine "tipping points", or threshold points, that are already active today.

Events that a decade ago were thought to occur in 50-60 years have proven to be major risks already now.

- There are major changes that we can see now and it is not based on climate models and forecasts.

This is data on what is happening right now, states Owen Gaffney at Stockholm Resilience Center.

It is about ice melting faster than feared, forests changing and ocean currents weakening.

At the same time, it now turns out that the different threshold points can affect each other, like the tiles in a domino game.

- It is now that you start to get really, really worried.

In the video, Owen Gaffney talks about tipping points and you can see how they affect each other.

Owen Gaffney works at the Stockholm Resilience Center.

He has co-authored an article on tipping points published in the journal Nature and is a co-author of a book on tipping points.

He is also a co-producer of a documentary with David Attenborough on the same subject.