Which renewable? 'Mirror, mirror on the wall'

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As renewable technologies jostle for position in the growing low carbon economy, commentators are asking 'Who is the fairest electricity gen ...

That iceberg looming just ahead...is global warming

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100 years ago, Titanic's Captain Smith steamed ahead full speed, despite iceberg warnings. By time the fatal 'berg was visible, it ...

Geoengineering: Is heart surgery better than a good diet?

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“Is heart surgery preferable to a good diet? Of course not. Let’s go for the good diet.”—Bill Gates, on geoengineering.