Six countries produce nearly 60 percent of global carbon dioxide emissions. China and the United States combine for more than two-fifths. The planet's future will be shaped by what these top carbon polluters do about the heat-trapping gases blamed for global warming. How they rank, what they're doing:
River cruise companies also have their own tipping policies. A handful, such as Scenic Tours, Avalon Waterways and Tauck, include gratuities in their overall price, while Viking River Cruises recommends that guests tip at the end of the trip at a rate of between Â£5 and Â£10 a day.
There were local lords who missed the independence they enjoyed under Canute. Worse, the Christian Olaf acted vigorously to curb and then to end the marauding that was the way of life for the Vikings when they were still pagan. That rankled more than a few. The aging Canute, looking to undermine a ruler whose power challenged his own in the region, was only too happy to promote disaffection among the nobles.