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.
Another option is Island Marine Punta Cana. Featured charter boat models include a 53' Viking, 19' Mako, 33' Hydra Sport, and a 32' Catamaran. Most charter prices include round trip transportation, snorkeling gear, snacks, an open bar, and a BBQ lunch upon a fully equipped vessel with the captain.