i think as early as in the late 60s and early 70s, there's already been call to reduce our wasteful habits capitalism has encouraged.
Even if global warming is a swindle and CO2 Aint trapping all the heat.
We all know our natural resources are depleted too fast; at this rate..we would be like what was portrayed in avatar...we need to "conquer" another planet for raw materials.
i think the sooner people realise
1)It's not about saving the planet but
Saving ourselves
2)if we were to find another planet and move there, rest assure the plants and animals on this planet will will miss us.
3)It's too late being a pessmist.
start acting today by being a responsible consumer; it's not enough just to recycle; We got to REDUCE and REUSE First!