CBC will broadcast from the Paralympics 2014. They had a delightful coverage from the Winter Olympics 2014, but it is still not possible to know what the Paralympics 2014 online broadcasting will look like.
Hopefully they will make live streams available, and in that way we can all watch what is going on in Sochi easily online from all across the world on Canadian TV. More information on how to watch CBC from abroad can be found in this article.
If this does not work, and you want to watch Paralympics somehow online, but you are willing to watch it on UK tv instead of Canadian TV, read my article on how to watch the Paralympics 2014 online!