The People's Climate March?

So...planning to go to NYC to march for the climate?  How you gonna get there?  Walk?  Ride your bike?  This issue really bugs me.  Why can't we march at home, right where we live?  Why do we have to go to NYC??  I'm envisioning all the marcher driving their cars or riding a chartered bus or taking the train to NYC--it all uses fuel.  Makes me think of all the virgins in Paris on parade.