A report released by scientists for the Intergovernmental Panel on Climate Change today says that it is "extremely likely" that humans are changing the Earth's climate.
In addition, the report shows that human influence has been the dominant cause of warming since the mid-20th century. Each of the past three decades has been warming than any preceding decade since 1850.
The IPCC brings together hundreds of scientists and researchers from around the world. We check in with one of the scientists on the findings, Dean Roemmich of the Scripps Institute of Oceanography.