If your on a LAN at work and your companies Firewall rule will allow the port required out, (looks like it should as it appears to be 80) - it's worth installing.
Similar to the Cancer, (and similar) - client app that doubles as a screen saver it will utilise your computers resources to perform a calculation as part of a worldwide Beowulf / Super Computer. The calculations will hopefully be used to predict a little bit more detailed the issues of global warming.
http://www.bbc.co.uk/sn/hottopics/cl...ownload1.shtml 
Red sky at night – Shepard’s delight.
Drown sheep in the morning - global warming.