We are beginning to consider the concept of sustainable (renewable) energy when we develop new technologies. Our present technologies are not sustainable. We are living on capital. Given that one hour of sunlight could provide our annual needs for one year, the future must be with solar energy. Geothermal energy sources, using the normal thermal gradient of Earth, are also impressive. There is no sign thatHomo sapiens has the wisdom to use fission energy given the potential abuses of this technology. One thing is certain, if we continue to burn fossil carbon to supply the world's increasing energy demands, the consequences will be devastating for all life.
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Fyfe, W.S., Powell, M.A., Hart, B.R. et al. A global crisis: Energy in the future. Nat Resour Res 2, 187–196 (1993). https://doi.org/10.1007/BF02257914
- Fossil fuel