Earth Day

I didn't really know what earth day was but I heard it is a hippie holiday. I think it is about saving the enviromnent for one day or its also something about reducing global warming. I learned there is conventions of that and also global warming and they talk about climate change, endagered species, and also the main cause pollution. well i think it's pretty good that people care about earth, well atleast they try for one day to help the mother earth.