The threat of a meltdown at nuclear reactors in Japan has prompted scrutiny of renewable power options by many nations as growing public unease pushes top consumers to either go slow or halt any immediate expansion in nuclear power.
Japan, one of the world's top nuclear power generators and a key advocate of the technology, plans a review of policy to tap sources such as solar. China too may double its target for photovoltaic capacity over the next five years, and Taiwan is studying cutting nuclear output. Germany and Switzerland are either shutting older reactors or suspending approvals.
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