Message to children and young adults: Don’t believe the hype that you are hearing from Extinction Rebellion and the like. Rather than going on strike or just worrying, take the time to learn something about the science of climate change. The IPCC reports are a good place to start; for a critical perspective on the IPCC, Climate Etc. is a good resource.
Climate change — man made and/or natural — along with extreme weather events, provide reasons for concern. However, the rhetoric and politics of climate change have become absolutely toxic and nonsensical.
In the mean time, live your best life. Trying where you can to lessen your impact on the planet is a worthwhile thing to do. Societal prosperity is the best insurance policy that we have for reducing our vulnerability to the vagaries of weather and climate.