I think climate change is a big issue and protests do draw attention to it. I do think it's one of the biggest issues facing humanity now. But why don't the protesters also get into careers where they can influence it? For example so many school children recently went on 'strike' when really they should be changing their future career to science, energy or politics. Also do Greenpeace channel some of their funds into scientific or enerrgy research?To some degree protesting about it is like shouting "I demand someone else must fix this".
Because they're children? They are demanding that adults fix this now, by the time my 8 year old has "done science" and is employed it'll be too late.
It's not an either or situation. Kids are demanding we do what we can while they get the chance to do what they can. Christ, my daughter and her mates spent the other evening litter picking at the park, we'd never have done that as kids for no reason.