Here's a small index of #environmental altruism:

Although the current financial model of installing domestic #solarpanels requires a pretty long-term view of any 'return' partly due to low feed-in rates for surplus #electricty generated, partly due to the partial withdrawal of state support in the UK & partly due to installation costs, nevertheless people are increasingly (again) installing where the only short/medium term gain is the #greenenergy benefit itself.

Altruists, I salute you!