World leaders have wrapped up a one-day United Nations summit on climate change with pledges to tackle global warming, but no binding commitments. On Tuesday, world leaders set goals including stopping tropical deforestation by 2030, improving food production and increasing the number of electric cars on the roads. Yet no movement was made on how to slow global warming and keep the rise in ocean temperatures below two degrees. In his remarks, President Obama called for a "global compact" to fight climate change. Hollywood actor and environmental activist Leonardo DiCaprio also addressed the U.N. summit on climate change Tuesday. He was recently named a United Nations Messenger of Peace. Leonardo DiCaprio said: "Now must be our moment for action. We need to put a price tag on carbon emissions and eliminate government subsidies for oil, coal and gas companies. We need to end the free ride that industrial polluters have been given in the name of a free market economy. They do not deserve our tax dollars, they deserve or scrutiny for the economy itself will die if our ecosystems collapse." "This is the most urgent of times and the most urgent of messages. Honored delegates, leaders of the world, I pretend for a living, but you do not. The people made their voices heard on Sunday around the world, and the momentum will not stop. But now it is your turn. The time to answer humankind’s greatest challenge is now. We beg of you to face it with courage and honesty."

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Climate Change Climate Summit Global Warming Leonardo DiCaprio United Nations