▶Arithmetic, Population and Energy - a talk by Al BartlettlXlSalemlXl · 6 개의 HN 추천74:46HackerTube / 01+
▶The End of Suburbia - 52 minute documentary on peak oilendofsuburbia · 3 개의 HN 추천51:44HackerTube / 02+
▶"Energy Revolution? More like a Crawl" - Dr. Vaclav SmilTrottier Institute for Sustainability in Engineering and Design · 3 개의 HN 추천108:56HackerTube / 04+
▶America Was Wrong About Ethanol - Study ShowsEngineering Explained · 2 개의 HN 추천12:59HackerTube / 06+
▶There's No Tomorrow (limits to growth & the future)incubatepictures · 1 개의 HN 추천34:52HackerTube / 08+
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