• So far 18 companies, including Best Buy and Verizon, have signed up for the Climate Pledge;
• Environmental activists welcomed Amazon’s move but said it was a huge challenge.

Amazon said on Wednesday that five companies, including Uber and JetBlue Airways, have joined its Climate Pledge, a commitment to be net-zero carbon by 2040.

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Chief Executive Officer Jeff Bezos last year pledged to make the largest U.S. e-commerce company net carbon neutral by 2040, as employees and consumers around the world protested for broader moves to address climate change.

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Environmental activists welcomed that move but said that cutting all emissions related to Amazon, which delivers 10 billion items a year and has a massive transportation and data center footprint, was a huge challenge.

“The transportation sector plays a critical role in accelerating our carbon reduction goals,” Bezos said in a statement on Wednesday.

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So far 18 companies, including Best Buy and Verizon, have signed up for the Climate Pledge, which was established in 2019.