Mon Oct 3 2011
By MARGARET MUNRO Postmedia News
A huge Arctic ozone hole opened up over the Northern Hemisphere for the first time this year, an international research team reported Sunday.
The hole covered 2 million square kilometres – about twice the size of Ontario – and allowed high levels of harmful ultraviolet radiation to hit large swaths of northern Canada, Europe and Russia this spring, the 29 scientists say.
The discovery of the “unprecedented” hole comes as the Canadian government is moving to reduce staff in what Environment Minister Peter Kent calls the “streamlining” of its ozone monitoring network.
Environment Canada scientist David Tarasick, whose team played a key role in the report published Sunday in the journal Nature, is not allowed to discuss the discovery with the media. Continue reading →