UNITED NATIONS (AP) -- Robert Redford says he came to the United Nations not as an actor but as an environmental advocate, father, grandfather and concerned citizen to urge the world's nations to take action now on climate change.
The 78-year-old Oscar-winner said his activism on climate change began more than 40 years ago and has grown stronger as he has seen the threat of global warming grow.
He told a high-level U.N. General Assembly meeting on climate change Monday that "the time for half measures and climate denial is over."
Redford said the job of the U.N.'s 193 member nations is simple but daunting: "save the world before it's too late."
He urged world's leaders to adopt a climate agreement in Paris in December to keep global warming from rising to dangerous levels.