On that note (and surprised you posted something sensible for a change
), I'll start with the disclaimer that I've been funded and have published climate change research (was easy money back in the day). So take what I say with a grain of salt.
Is climate change real? Depends how you look at it. Do I think its proven - no. Do I think the process arguments that drive the concept are realistic - yes. Do I think the modelling is sound - no - scientists have no idea of how basins, sinks and various feedback loops associated will operate. Nothing is linear in this space.
So - given this - do I think we should act on climate change now - yes. Simple risk management perspective. If you spend the money to fight it or moderate the impacts, the worst that can happen is you've spent a bucket load building a more resilient and holistic society. If you don't spend the money or wait, the worst that can happen is you are woefully unprepared if climate change is real and underestimated.
My view - go the protestors. May not agree with the way they have done things and think they've done a crap job at spreading their message but 100% believe in the message.