In debate

Clouds are increasingly being used by businesses, governments and scientists in areas from astronomy to zoology.

However, for anybody thinking of using the cloud, a number of questions spring to mind:

Where does the data in the cloud go? Who can see it? Is it safe? And is cloud computing any greener than using my own computers?

Clouds have developed so quickly that, for some of these questions, the answers have not yet been agreed. Let’s take a look at some of these issues.