Does environmentalism promote community engagement?

Recently, Organic Soul did an article on social capital – the “features of social organization such as networks, norms, and social trust that facilitate coordination and cooperation for mutual benefit.” I proposed the idea that environmentalism provides a unique solution to declining social capital.

As it was put:

“The environmental movement is built on a number of foundations: first, a respect for the world; second, a respect for holistic thinking, which is directly tied to the first foundation; third, the environmental movement, specifically because of the two aforementioned reasons, is inherently communal in nature; finally, this communal nature of the environment provides policy makers with a unique approach to recapitalizing society.”

What do you think? How can environmentalism promote community engagement, trust, and benefit?