A possible way to fix the current system is by encouraging people to do so more often by rewarding this more strongly.

I agree. Since we are all 'peers' as far as humanity goes, more people, especially those not invloved in the scientific community should be encouraged to get involved where possible. For example, although it might be difficult for me to repeat some of the experiments done in the linked study due to lack of equipment/knowledge/skill, there is no reason why I could not find others who have the knowledge/skills/equipment that I lack. Everyone has something they can contribute and the way 'science' and 'scientists' are being portrayed as some sort of religion which cannot be questioned is dangerous. Greta is effectively telling people to not think for themselves or do any research for themselves because 'science' has settled it. This is dangerous in my opinion (and untrue) and even more so in this case because of where I believe the global warming hoax is designed to lead humanity.