I have been away for a while as I attended a Permaculture Design Course (PDC). For those among you that do not know, Permaculture is basically the art of hacking natural ecosystems in order to make them run without our constant intervention while still being productive.
Although many talks where related to gardening and agriculture, there was substantial amount of time devotes to sustainable construction: talks about alternative energy, eco-construction, water treatment and similar topics. If I ever get the time, I will post some of the things I saw/tinkered with.
For now, check out Hack a Day’s latest feature run, sustainable hacks!