More than 330 Amazon employees faced off against the e-commerce giant’s communications policy on Sunday, in an unprecedented public display of support for their compatriots who had been warned they could be fired for speaking out to criticise the company’s climate practices.

Amazon Employees for Climate Justice, a group of workers concerned about the company’s business with the oil and gas industry, as well as its carbon footprint, published quotes from the workers in a post on Medium.

“Amazon’s role in the climate crisis is staggering and alarming,” wrote Scott Ogle, a queue management analyst. “I stand with fellow employees who prioritise sustainability over profits.”