Avery Dennison Corp. joined the fight for climate change this week with a pledge to reduce greenhouse gas emissions from its operations by 26 percent in the next 10 years. The Glendale label and packaging materials supplier made the pledge in support of the United Nations Climate Change Conference in Paris. It is one of 154 U.S. businesses participating in the pledge to combat global warming and hopefully benefit from clean-energy policies. Other companies making the pledge include 21st Century Fox, Amazon.com Inc. and Wal-Mart Stores Inc.. The American Business Act on Climate Pledge, a White House initiative, was created in support of the United Nations conference. In alignment with the pledge, Avery Dennison will eliminate its greenhouse gas emissions by 3 percent annually, or a total of 26 percent by 2025. “Climate change is an imminent global threat that demands urgent action from all segments of society — including business — while we still have time to act,” Dean Scarborough, the company’s chief executive, said in a statement. “Signing the pledge was an easy decision because we’re already doing the things that the pledge asked of us. …We are cutting our own carbon emissions and taking additional measures to tackle climate change.” Shares closed down 87 cents or 1.3 percent to $65.31 on the New York Stock Exchange.