Hundreds of companies have signed onto letters to government leaders, encouraging them to take action on climate change.

The letters to President Joe Biden, Gov. Doug Ducey, Sens. Kyrsten Sinema and Mark Kelly and others urge a goal of cutting greenhouse gas emissions by at least 50% below 2005 levels by the end of the decade.

Among the companies that have signed on are Apple, PayPal, Amazon and Walmart. 

To learn about the effort, The Show spoke with Anne Kelly, vice president of government relations for Ceres, a nonprofit that promotes climate and energy policy.

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