Its seems you can’t turn anywhere these days without some marketer making green claims.

You could be forgiven for thinking that big companies with the vaguest interest in flashing their green credentials – even when those credentials are somwhat tenuous – do tend to get out there and do it. A lot.

But no, according to a new study. Big tech companies – you know, those shrinking violets of the marketing scene, like Microsoft and Cisco – often fail to tell the world about all the good they’re doing to save the world. Yes, that’s right. Oh and it’s the opposite of ‘greenwashing’, so they’ve called it ‘greywashing’ (or presumably ‘graywashing’ for Americans).

I am not a big fan of Microsoft, having used their products, but this news raises my opinion of them. As for the greenwashers, it is always good to keep in mind that sometimes the most vigorous supporters of a cause are the ones you need to keep an eye on.