It might not be an obvious question for Katy Perry's agent to be raising, but it's one Emma Banks, who co-founded the UK arm of one of the world's biggest music tour agents, is increasingly having to ask.
She says your favourite artist's tours can have up to 60 trucks moving equipment all over the world.
And she says musicians "have to be proactive" about the impact tours like that have on the environment.
"The more shows you have, the more environmental impact it has.
"We need to think more about how we can actually not create the problem in the first place," Emma tells BBC Music Introducing's Does My Music Suck? podcast.Image copyright Getty Images Image caption
As well as Katy Perry, Emma's roster at the Creative Artists Agency ranges from other female superstars like Lorde and Kylie to some of the biggest bands on the planet - including Arcade Fire, Red Hot Chili Peppers, Green Day and Muse.
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