Are Sustainability Advocates Happy People?

Not to state the obvious, but this appears to be a good reason to try to aspire to a life that produces happy thoughts – perhaps thoughts of love, charity, peace, and general good will to our fellows. I wonder if there is a case to be made that the folks involved in the sustainability movement, those who honestly and actively care what type of world we’re creating for the seven billion others around us, have happier thoughts than those who are indifferent to their neighbors.
Of course, one could argue that there is a great deal of heartbreak in failed efforts, that ignorance is bliss, and that, in the words of Emerson: “You can have truth or repose, but you cannot have both.”
I’d be interested in readers’ comments.

Renewable energy or any clean energy is a good initiative way for sustainable future.