New Scientist listed the top 7 alternative energy sources in an article saying that…
The US could replace all its cars and trucks with electric cars powered by wind turbines taking up less than 3 square kilometres – in theory, at least. That’s the conclusion of a detailed study ranking 11 types of non-fossil fuels according to their total ecological footprint and their benefit to human health.
The study, carried out by Mark Jacobson of the atmosphere and energy programme at Stanford University, found wind power to be by far the most desirable source of energy. Biofuels from corn and plant waste came right at the bottom of the list, along with nuclear power and “clean” coal.
Watch a video of Jacobson discussing his findings.
The energy sources that Jacobson found most promising were, in descending order:
- Wind
- Concentrated solar power (mirrors heating a tower of water)
- Geothermal energy
- Tidal energy
- Solar panels
- Wave energy
- Hydroelectric dams
Read the rest of this article which also addresses biofuel concerns and current focused efforts.
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