▶Arithmetic, Population and Energy - a talk by Al BartlettlXlSalemlXl · 6 件のHN推薦74:46HackerTube / 01+
▶The End of Suburbia - 52 minute documentary on peak oilendofsuburbia · 3 件のHN推薦51:44HackerTube / 02+
▶"Energy Revolution? More like a Crawl" - Dr. Vaclav SmilTrottier Institute for Sustainability in Engineering and Design · 3 件のHN推薦108:56HackerTube / 04+
74:46
