John Donson wrote:

I do not care about my electricity-bill. I earn enough money to pay it.

Something I contemplated myself and was curious how everyone else feels.
I saw a bit of a contradiction.
With the millions of computers around the globe running S@H, tonnes of pollutants are being released into the atmosphere from electricity plants. Either CO2 from coal or gas plants, radioactive waste from nuclear plants.

Is looking for ET more important than saving our own biosphere?

Now my solution to my troubles was to elect an electric generating company that offers 100% renewable sources of power. Solar, wind, small scale hydro and even geo-thermal are my sources of power. Now I pay about 40% more than I use to with my old company, but I feel better, especially having all of these PCs running, knowing I'm not killing the human race at the same time.