Greta Thunberg slammed for laughing at protesters part of climate movement she started

Greta Thunberg has been slammed for laughing at protesters who are part of a climate movement that she started. In a scene from a documentary, Greta was informed that climate movement Fridays for Future was still active in Berlin, to which she replied, "Is it?" This was soon followed by laughter as she said, "Really? They still do that?"