How Green is Your Cruise?

How Green is Your Cruise?

As cruise companies head into their busiest season, they say they have ambitious plans to find cleaner sources of fuel. But critics say the progress is too slow.
The World’s Most-Visited Glaciers Could Soon Be Gone

The World’s Most-Visited Glaciers Could Soon Be Gone

The U.N.’s cultural agency warns that ice sheets on Kilimanjaro, in the Dolomites and in Yosemite and Yellowstone may disappear by 2050, highlighting travel’s impact on climate change.