Do you think we should base all our hope into things that are not even in the labs yet ?

I prefer to use good ol' technologies such as power plants/damns, they are reliable, they can be done locally (most of solar panels are coming from China), they can be repaired and we can handle them country wise easily.

If we want to reduce our CO2 emissions, we move to gaz (coal -> gaz is -20%), we reduce our consumption (building isolation is -30%, sometimes -50%), and we massively reduce cars usage (by developing trains, another good ol' technology that works really well).