The company is promising to be both transparent about its progress and “nimble” in adapting to the latest technology. It teased a “number of milestones” coming in 2020.

It’s an ambitious plan (BP isn’t expecting neutrality until 2050), and it’s notable that Delta isn’t trying to ‘cheat’ by using carbon offsets. This is still a tall order, however. About 98 percent of Delta’s emissions, roughly 39.4 million imperial tons per year, come from its aircraft. Even if there’s a dramatic improvement in fuel efficiency, the airline will have to invest heavily if it’s going to compensate for its contribution to climate change.

There are also no tangible plans to move to electric aircraft or other zero-emissions sources. CEO Ed Bastian told CNBC in an interview that he didn’t “ever see a future” where Delta would eliminate jet fuel use. The air carrier might produce significant CO2 emissions for a long, long time. Still, this might prompt Delta’s rivals to follow suit and lower the airline industry’s overall footprint. When air travel accounts for 2 percent of worldwide CO2 emissions, they might play a significant part in reducing humanity’s effect on the planet.

The manufacturer is pushing back on Bloomberg’s estimate that “potentially hundreds of aircraft worldwide are flying with the unsafe systems.” In a statement, Honeywell spokesman Nina Krauss said the problem may impact 70 or fewer jets, and there’s no evidence that the airplanes are operational. Many units could be on retired aircraft or simulators.

Interference can cause the affected units to lose critical data on airspeed and navigation. Airlines and Honeywell both argue that the cockpit screens don’t pose a safety risk. Still, dozens of pilots have reported instances of display units going blank and important flight important vanishing. The FAA is giving airlines until November 2019 to upgrade their systems.

If you’re due for a flight in the near future, there’s no need to panic. First off, the chances of you flying on a plane with an outdated unit are very low. Both Delta and Southwest Airlines have upgraded their screens. American Airlines still has 14 jets that need the update, and United Airlines has 17 jets that need components replaced, company representatives told Bloomberg. Budget European carrier Ryanair hasn’t upgraded its screens due to the “financial burden,” but inspected its display units and replaced those with issues.

All told, the outdated cockpit screens still present a relatively low risk. Back in 2014, Southwest Airlines ran a test on WiFi-enabled Boeing 737s with the affected Honeywell system and reached 2,300,000 hours with no issues. Still, it’s better for the airlines to be as safe as possible when it comes to passenger safety.

Update, 7/18/19, 5:20PM ET: This story has been updated with more details from manufacturer Honeywell.