"People assume that in the 50 years since the first Earth Day we've made no progress. That we're in a worse position now than we were in the 1970s, that there's no point in environmental action," [...] Quite the opposite is true. Climate-friendly advances that would have seemed impossible even 10 years ago are now commonplace. And three times in the past 50 years humanity has faced--and fixed--massive, man-made global environmental issues.
The fight isn't won yet, but don't forget that we have made enormous progress.
We would be in a much, much worse position if it wasn't for all the incredible work of environmental activists who came before us, most of whose names and contributions we will never know. They are the reason that we have a fighting chance now, and we owe it to them to pick up their banner and keep running.