CO2 will save man from starvation and alarmist still call a gas essential to life a pollutant. How bizarre. I wonder if these kids protesting had there mummy and daddy drive them to the rally in a petrol powered car. I assume they did; some at least. I wonder why they only protest coal and not oil? If they want to protest oil they could block cars from entering petrol stations. I wonder how that would work with angry motorists wanting to fill their cars? They tell me CO2 is at 420 PPM The plants are enjoying the breath of life this has given them. Plants are growing faster and bigger. Yields have increased and the planet is greener than 50 years ago. All that coal buried deep in the ground, which sucked CO2 from the atmosphere and put plants on a starvation diet is being released; too slowly in my opinion, to help man feed the massive increase in our population in the past 100 years. Coal and oil has advanced man tremendously in the past centuries and the slight increase of the gas in our atmosphere has been beneficial to plants. The earth is entering uncharted territory. 7.5 billion population and growing. We are all getting dumber. Kids can't answer exam papers without multiple choice answers and you think they are smart? They are brainwashed. Too much time reading social media does that to people. Look around you today and enjoy the benefits coal and oil has brought to all of us. Condemning the hand that feeds you is just plain dumb. These protesting kids will wonder why Australia is in a massive recession soon and why our manufacturing industries have died. Mummy and daddy will lose their over paid jobs and maybe their house and car too. Won't that be a treat for bored kids.