A Crisis Nobody Planned For Is Solving a Problem Nobody Could Fix

Iran closed the Strait of Hormuz. Nearly 20 percent of the world's oil supply moves through that waterway. The result: jet fuel shortages that have depleted strategic reserves in the UK, Germany, and France, and spread disruption to the US market.

American Airlines told USA Today it will temporarily suspend several domestic routes in August and September due to rising fuel costs. Millions of travelers have already canceled international summer trips — including aviation analyst Mark Miller, who scrapped a family vacation to Rome and Sardinia after watching the crisis unfold.

The blockade has triggered energy security concerns. But it's also shifted markets for sustainable alternatives.

SAF Is Suddenly Competitive — Because Regular Jet Fuel Got Expensive

Sustainable aviation fuel, or SAF, normally costs two to five times the price of conventional jet fuel. That price gap has killed adoption for years. Mandates, subsidies, and corporate sustainability pledges have barely moved the needle.

Then came the blockade.

"Right now, conventional jet fuel looks to be twice as expensive going into the summer travel season," said Lauren Riley, chief sustainability officer for United Airlines. "That makes SAF look like a more competitive alternative financially. In fact, it's the closest to parity we've ever seen. This is the first time in my career that we're actually having conversations about it."

United, Delta, American, and Cathay Pacific are among the carriers already using SAF. The fuel is made from renewable feedstocks — used cooking oil, agricultural waste, leftover fats and greases — and can cut emissions by up to 80 percent without requiring any modifications to existing aircraft. US conglomerate World Energy has been converting those materials into SAF at scale.

Price parity drives adoption. That's how energy markets work.

The Supply Problem

This is a crisis-driven price spike, not a structural shift. The moment the Strait reopens and conventional jet fuel prices normalize, the economic case for SAF weakens again — fast.

SAF production capacity is also nowhere near sufficient to replace conventional fuel at scale. The industry has been saying that for a decade. One summer travel season doesn't change the supply chain.

If governments and airlines want to lock in any gains from this moment, they need investment in production infrastructure now — not after oil prices drop and the urgency fades. History says they won't.

Maritime Transport Is Moving Forward

While aviation scrambles, some transport sectors are making durable progress.

New York State's Harbor Charger — a $33 million hybrid-electric ferry designed by Seattle-based Elliott Bay Design Group and built at Conrad Shipyard in Louisiana — has been operating between Manhattan's South Ferry terminal and Governors Island. It carries 1,200 passengers and 30 vehicles, runs 66 percent faster than the diesel ferry it replaced, and is expected to cut CO2 emissions by at least 600 tons per year. The Trust for Governors Island says it's already generating interest from other cities looking to electrify their public watercraft.

The economics are straightforward. The ferry's simpler electric drivetrain saves an estimated $200,000 annually in fuel costs. Once rapid-charging dockside infrastructure is installed, diesel gets cut entirely — saving another 800 tons of CO2 per year.

San Francisco Bay Ferry is preparing to launch the first fully battery-electric high-speed passenger ferry in the US, expected to begin service in early 2027.

These are public transit upgrades that pay for themselves.

The Greenwashing Problem

None of this progress matters if consumers can't tell the real thing from the marketing.

Researchers in Turkey published a paper in May in the journal Frontiers in Sustainability identifying five major categories of tourism-related greenwashing: fake eco-certifications, inadequate waste management, misleading carbon offset claims, destination overconsumption, and using "green development" language to mask social and environmental harm.

"Businesses facing demands for environmental and social responsibility frequently engage in gestures that are largely for show," the authors wrote.

The researchers found a key distinction: any company claiming it HELPS the environment — rather than explaining what it's doing to reduce its footprint — warrants skepticism. Credible third-party certifications like the Global Sustainable Tourism Council and EarthCheck involve mandatory audits and scientific benchmarks. A hotel hanging a towel-reuse card in the bathroom is not an environmental program. It's a cost-cutting measure dressed up in green language.

What This Means for Regular Travelers

If you're flying this summer, you're paying more. Some routes you wanted may not exist. That's the direct consequence of energy dependence on a volatile region — and no amount of carbon offset purchases changes that math.

If you're evaluating genuinely greener options, skip the marketing and look for audited certifications. Support the hybrid and electric ferry routes where they exist. SAF's competitive window is real — but temporary.

The Strait of Hormuz crisis exposed how fragile the global fuel supply is. The solution isn't just cleaner energy. It's energy that's produced domestically, at scale, without depending on geopolitical stability in the Persian Gulf.