entering unchartered waters

Human civilization developed on Earth under certain climate conditions. Over the last 150 years, however, we have released so much carbon into the atmosphere from burning fossil fuels that the climate is changing — and not for the better. Rising sea levels mean devastating storm surges for low-lying farmlands and cities. Disappearing glaciers mean less water for vast areas of India, China, and the American West. Shifting climate zones mean many plants and animals will no longer survive where they've been — and may not be able to survive in new areas.

Climate change is real — the scientific debate on this has long been over. What remains is to build the political will to do something about it.


J. David Hughes: The Energy Sustainability Dilemma

length: 1:16:55   credit: Shale Shock Media

A fascinating talk by J. David Hughes given at Cornell: "The Energy Sustainability Dilemma : Powering the Future in a Finite World." Most of the easy energy is gone. This was from oil which was plentiful, and easy to get, with a very high net Energy Return on Investment (EROI). Now we are pursuing Deep Ocean Drilling, Tar Sands, Fracked Shale Gas, etc. Are we heading for a dead end? What about Wind and Solar? Can they make up the difference? This talk is somewhat technical, but essential if we are to understand our energy options as our society pushes for more energy. The slides are here.

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