'We have no power, no heat, no water'
The BBC's Lucy Hockings reports on the conditions in Quebec where, like many other households in Canada and the northern US, she is facing a Christmas without electricity.
Nearly 400,000 customers in eastern Canada and 390,000 in the US are still without power, with Michigan worst hit.
In Toronto, a utility has said power may not be restored for most residents until Thursday, and that some may be without electricity until the weekend.
- From the section US & Canada