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.
Norwegian Cruise Line (www.ncl.com) Passengers ages 18 to 20, with the written consent of their parents or guardian, can purchase beer or wine for themselves only when the ship is sailing in international waters (except in Alaska and Hawaii, where you must be 21 years of age to consume or purchase alcohol or any kind).orwegian Cruise Line (www.ncl.com) Passengers ages 18 to 20, with the written consent of their parents or guardian, can purchase beer or wine for themselves only when the ship is sailing in international waters (except in Alaska and Hawaii, where you must be 21 years of age to consume or purchase alcohol or any kind).