Google has joined with 70 other companies and union leaders to call on the US to stay in the Paris Agreement. The letter was signed by the CEOs of Google, Mastercard, Salesforce, Aon, Tata Sons, Disney, Bank of America, Tesla, Microsoft, Adobe, IBM, Goldman Sachs, Verizon and Corning, among many others, and marks the start of the 25th annual United Nations Climate Change Conference.

The companies added that they will look to become innovators in the renewable energy market, and to build responsible supply chains and products that use AI to drive sustainability.

“We the undersigned are a group of CEOs who employ more than 2 million people in the United States and union leaders who represent 12.5 million workers. Together, we know that driving progress on addressing climate change is what’s best for the economic health, jobs, and competitiveness of our companies and our country,” the letter reads.

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They added that every business has the opportunity and obligation to protect the planet. “The companies said that they will try to build sustainability into everything they do, from designing efficient data centres and creating sustainable workplaces, to manufacturing better devices and creating more efficient supply chains. The higher goal however is to “create and live in a more sustainable world.”