Solar storm heads Earth's way after double sun blasts

Two big explosions on the surface of the sun will cause a moderate to strong geomagnetic storm on Earth in the coming days, possibly disrupting radio and satellite communications, scientists said Thursday.

Locking down the cloud

A software re-encryption system could allow users to pay for and run applications "in the cloud" without revealing their identity to the cloud host. The same approach would also allow the software providers to lock out malicious ...

Tallying the wins and losses of policy

In the past decade, China as sunk some impressive numbers to preserve its forests, but until now there hasn't been much data to give a true picture of how it has simultaneously affected both the people and the environment.

Valuing nature is not enough

Is it possible to put a price tag on the natural world? A researcher at The University of Nottingham has been examining the rise of a new concept—ecosystem services—to describe the multitude of resources supplied to us ...

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