Why on earth (no pun intended) is anyone taking this ill-informed, unqualified young lady even slightly seriously? Especially world leaders who, frankly, should know far better. Her position/argument is completely emotional, no facts in it at all.
There is no 'climate crisis' or 'global warming'. Yes the climate changes, but it is very slowly, like over millenia, not a couple of decades, it cools and warms very slowly, mostly based on the temperature of the sea.
As for CO2 being responsible, that doesn't stand up to the slightest scientific scrutiny. The planet has been warmer in the past with lower CO2, and colder with much higher CO2 levels, long before the SUV (or even the motor car) was thought up. CO2 is actually at dangerously low levels at present - around 400ppm. Life on earth starts to die off at around 270ppm. CO2 is essential for life on the planet, it is therefore not a pollutant - nature doesn't work like that. Why do gardeners increase the level of CO2 to around 1500ppm in greenhouses? To speed up plant growth. This would be unlikely if CO2 was actually a pollutant.
Not a single one of the predicted 'disasters' that so-called 'climate change' (rebranded from 'global warming' in 2004 when it was discovered that the planet wasn't actually getting any warmer) has actually happened.
"The Arctic will be ice-free in summer by 2012" said Al Gore... turns out ice at both poles is increasing. Maldives disappearing under water by 2014? They are still there.
These celebrities and world leaders all go to these summits in jet aeroplanes, and get ferried around in huge limos while there. Does that not tell you that they KNOW it's a scam?
Lastly, I will leave you with this thought: Barack Obama and Al Gore have both bought beach front sea level properties. Why would they do that if sea levels were actually rising?