Morrissey performs on Day 2 of the 2015 Firefly Music Festival at The Woodlands on June 19, 2015, in Dover, Delaware.

"More and more people are opting for vegan leather for the sake of both cows and the environment."

Morrissey is performing in Detroit on Wednesday night and ahead of his show he's taking the opportunity to ask General Motors to offer vegan leather interiors for its Chevrolet Volt and Bolt models.

In a letter to CEO Mary Barra, as the Detroit Metro Times reports, the former Smiths singer wrote, "A staggering 51 per cent of global greenhouse-gas emissions are caused by animal agriculture. Animal skins also have to be treated with a toxic soup of chemicals in order to keep them from decomposing, and runoff from leather tanneries poisons vital waterways."

Moz also cited a recent PETA investigation of the brutal conditions at Brazilian cattle ranches that supply leather to GM, Toyota and Volkswagen. (Watch a video about that here.)

"Given that the Volt and Bolt are being marketed to eco-conscious buyers, entirely vegan options would only broaden their appeal," wrote Morrissey.

Tells Motors currently uses vegan leather in its cars.

Read Morrissey's full letter here:

Mary T Barra

Chair and CEO

General Motors Company

21 November 2016

Dear Ms Barra,

As I head to Detroit to play the Royal Oak Music Theatre, I’m writing to ask GM to make Chevy’s Volt and Bolt more eco-friendly by giving buyers the option to choose vegan leather interiors–including steering wheels and gear shifts. GM is named in PETA’s brand-new investigation of cattle ranches, on which animals are branded on the face, electro-shocked, and beaten before they’re slaughtered and used to make leather interiors for car companies, including yours.

More and more people are opting for vegan leather for the sake of both cows and the environment. A staggering 51 per cent of global greenhouse-gas emissions are caused by animal agriculture. Animal skins also have to be treated with a toxic soup of chemicals in order to keep them from decomposing, and runoff from leather tanneries poisons vital waterways.

Given that the Volt and Bolt are being marketed to eco-conscious buyers, entirely vegan options would only broaden their appeal. I look forward to your reply.

Yours sincerely,

Morrissey