One hundred fifty-four companies, representing a combined market capitalization of $7 trillion and employing nearly 11 million people, have now signed a White House pledge urging strong action on climate change after 73 additional companies announced their support Nov. 30. New signers of the pledge, according to the White House, include Adobe Systems Inc., Amazon Inc., Du-pont, JetBlue Airways Corp., Kaiser Permanente, LinkedIn Corp., MGM Resorts International, News Corp, Verizon Communications Inc. and United Technologies Corp.
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