SEATTLE — Employees at big tech companies have pushed back against their employers for working with the military and law enforcement offices, and demanded better treatment of women and minorities.

Now, thousands of them are also taking on climate change.

This week, more than 4,200 Amazon employees called on the company to rethink how it addresses and contributes to a warming planet. The action is the largest employee-driven movement on climate change to take place in the influential tech industry.

The workers say the company needs to make firm commitments to reduce its carbon footprint across its vast operations, not make piecemeal or vague announcements. And they say that Amazon should stop offering custom cloud-computing services that help the oil and gas industry find and extract more fossil fuels.

The goal for Amazon’s leaders and employees is “that climate change is something they think about whenever a business decision is being made,” said Rajit Iftikhar, a software engineer in Amazon’s retail business. “We want to make Amazon a better company. It is a natural extension of that.”