One hundred and ten countries have signed a treaty to rid the world of POPs. The United Nations Convention on Persistent Organic Pollutants was signed Wednesday morning in Stockholm, Sweden.

It's aimed at ridding the world of about 12 dangerous chemicals including dioxins, PCBs, and DDT.

Sheila Watt-Cloutier, the president of Inuit Circumpolar Conference Canada, watched the signing ceremony in Sweden, and says it was a historic moment.

"One hundred and ten countries have signed. It's almost unheard of that it would be happening so quickly in that way," she says. "One has ratified, which is our own country of Canada, and they ratified immediately on the spot, which was an incredible moment for all of us."

Watt-Cloutier says all signs indicate the other countries will ratified the treaty by 2002.

She says it's good news for the circumpolar world. Persistent organic pollutants tend to concentrate in the Arctic more than anywhere else. They end up in the food chain and are linked to cancer.