It was a state of the art liberal protest. There were no planned arrests at this action, to make it as accessible and low risk as possible. Celebrates had been arrested the week before. There were 34 people who got arrested after this big march of 45K participants.
What made it state of the art were the websites for the planning and the giant TV screens at the base of the Washington Monument.
What made it liberal was the frequent appeals by the speakers to patriotism and American ingenuity. There is nothing particularly American about climate change, this is a global problem.
And while leadership from the US would be great, we could be working on this from a non-nationalistic angle.
And for this protest, they are using all the tools of a classical domestic political campaign. Senators spoke at the event. The big call was for Obama to keep his promises.