Saving Lake Winnipeg is the subject of an exhibit that opened at the Manitoba Museum Saturday, which is also World Water Day.

The museum said 'Lake Winnipeg: Shared Solutions' is one of its most ambitious exhibits in the Science Gallery. 

It asks how Manitobans would fix the lake, which was named the world's most threatened lake in 2013 by the Global Nature Fund.

The exhibit, which cost over a $1 million, got support from the International Institute of Sustainable Development, among a raft of corporate, government agencies and private sponsors. 

The museum said the centerpiece is a high-tech computer simulation of the Lake Winnipeg watershed, which allows visitors to see how their decisions would affect the lake. 

"It's not only about improving the lake," said Scott Young, Shared Solutions project manager. "Every decision has a cost, both in terms of economic impacts but also in the 'social capital' of the province - how happy people are with your choices."