Winberg, a 67-year old retiree from Sundbyberg outside Stockholm, told Swedish daily Dagens Nyheter that although she doesn't know much about the environment, she didn't hesitate in taking up Lena Ek on the offer last week.
She told the paper that she wore black trousers and a blouse "with some things on," and that she met interesting people, "like that guy Blix," a reference to former chief U.N. weapons inspector Hans Blix.
Ek's spokesman said the minister found the situation "extremely funny."
