Learn English: Air New Zealand Can't Reach Its Clean Air Goal (easy)

Air New Zealand, a big plane company, said they can't reach their goal of cleaning up the air by 2030.

They say it's hard to get new, cleaner planes and special fuel that doesn't pollute as much.

They might have to keep their old planes longer because it's hard to get new ones made.

Even though everyone wants to make the air clean by 2050, Air New Zealand is going to change its plans a little bit.