Well! This is an interesting proposal. From the CBC: Scientists propose refreezing Arctic in battle against climate change.

A group of researchers has proposed using wind-powered pumps to refreeze the Arctic.

The proposal seems ambitious: it involves 10 million devices deployed over 10 per cent of the Arctic, at a cost of $500 billion US. [continue]

Sounds more promising than anything else I’ve heard. You think it would work?