The Dallas Morning News

Climate change can alter travel

- CHRISTOPHE­R ELLIOTT Elliott is a consumer advocate, journalist and co-founder of the advocacy group Travelers United.

When Kimberly Button drove her RV to Glacier National Park in Montana this summer, she expected relief from her muggy hometown of Orlando, Fla. “We assumed that we’d have mild temperatur­es,” she says. “We couldn’t have been more wrong.”

Instead, the Rocky Mountains baked in mid-90-degree temperatur­es. Button’s family camper, which didn’t have air conditioni­ng, felt like a sweatbox. “We were looking at each other,” Button says, “and saying, ‘How is it this hot in Glacier National Park?’”

As it turns out, this is more than a hypothetic­al question for someone like Button. She publishes GetGreenBe­, a website about green travel, and has become increasing­ly concerned about the effects of climate change. She says that this summer’s extreme weather was a wake-up call.

The Southwest endured its worst heat wave in decades. Tripledigi­t temperatur­es forced the cancellati­on of dozens of flights at Phoenix Sky Harbor Internatio­nal Airport. It was too hot to fly. And then there were hurricanes Harvey, Irma and Maria, which disrupted even more travel plans.

“Weather events are becoming more frequent, more severe and, in many cases, the seasons in which we worry about them are becoming longer,” says Meghan McPherson, who teaches at Adelphi University’s emergency management program. “Much of our infrastruc­ture was designed to function in the climate in which it was created. Because of this, roads that never flooded even 10 years ago are now flooding in everyday rainstorms. Our planes are unable to take off in heat they were not designed to withstand.”

Too hot to fly

Let’s stick with those grounded planes for a minute. Why couldn’t the aircraft in Phoenix take off? Jet engines produce less thrust during a heat wave, because the air is less dense, says Dan Boland, a commercial airline pilot. “Less dense air equals less power, and when we have close to full passenger loads it becomes almost impossible to safely take off at temperatur­es above 100 degrees.”

Flying in hot weather is also more expensive. Most takeoffs can be achieved with reduced thrust, but as temperatur­es approach 95 degrees, pilots must use the maximum thrust available, which reduces engine life and increases the cost of a takeoff by $500, Boland says.

The temperatur­e increase has ramificati­ons on land as well. Earlier this year, Jessica Pociask, an ecologist and the founder of Want Expedition­s, a tour operator, had to cancel a tour to view harp seals in the Gulf of St. Lawrence because of a lack of ice.

Phyllis Stoller, who heads Women’s Travel Group, says changing weather has affected her tour business. On her first March trip to Ethiopia nearly six years ago, the temperatur­es at the higher elevations were cool. Two years later, she says, there was no relief from the heat, even at 10,500 feet. “We changed our dates for the next Ethiopia tour to accommodat­e this change and are planning it for a winter month.”

Although there’s nothing you can do to change the climate, at least in the short term, there are a few steps you can take to ensure that disruption­s are kept to a minimum.

If you’re concerned about an early thaw this winter, for example, you can plan your ski trip for a time when snow is more of a sure thing — say, move your vacation from early March to mid-February. To steer clear of hurricane season, take that Caribbean cruise in December or January.

Endangered destinatio­ns

The threat of global warming may also influence where you go. Greg Geronemus of SmarTours says more of his clients are asking him about “last chance” destinatio­ns that are threatened by climate change.

“We hear a lot from our clients that they want to see South Africa because so many animals are endangered, and because drought conditions are changing the continent and way of life,” he says. “Venice is another example of an endangered destinatio­n. With global warming, the seas are rising. Venice already floods multiple times a year, so it’s only a matter of time before this wonderful destinatio­n sees drastic changes.”

It helps to understand your rights when an extreme weather event delays your trip. Many travel companies have “Act of God” clauses that let them off the hook for weatherrel­ated delays or cancellati­ons. That fine print is in the airline’s contract of carriage or in your cruise line’s ticket contract, and it essentiall­y means the company can cancel a trip without having to cover any of your expenses or even get you to your destinatio­n. A good travel insurance policy can make your trip go a little smoother, whatever the weather.

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