Unfortunately, she fails to make the fundamental connection to the source of the problems--the capitalist system which cannot deal with the problems. Until we, the people, make this connection and change the system, nothing of consequence will change with regard to halting the slide toward catastrophe.
The central message of most Earth Day celebrations is that if we all do a little, we'll make the world a better place. But the fact is that that's not true, and as much as we like to hear such a friendly, fuzzy message, we can't make it factual just by wanting it to be true. The blunt reality is that unless we all do an awful lot, very fast, we're facing disaster. We use the word "sustainable" casually, to mean "well, we can probably do a little more of this if we cut back a little now." But we are facing a sustainability crisis in the deepest sense - if we don't make massive changes and quite rapidly, our children's future is in question - and the children of billions of people around the world.