Are biofuels the future?
They are a popular source of energy in Brazil, but they come with considerable pitfallsÂ
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How Spain mishandled its renewable energy industry
Spain is an example of how not to progress a renewable energy programme
The benefits and disadvantages of nuclear power
Nuclear power tends to provoke strong reactions.
Is there a future for air travel?
Should oil reserves be depleted the end of cheap air travel would be imminent.
Is Big Oil dead?
The oil industry is facing the challenge of dealing with a renewable energy revolution