The United Nations' Intergovernmental Panel on Climate Change's (IPCC) released the Fifth Assessment Report. According to the report, there is overwhelming scientific evidence that  greenhouse gas levels and the average world temperature continue to increase, and that the global risk of dramatic changes to weather systems, global sea level, and flood and drought patterns is increasing as well. The panel reviewed latest peer-reviewed research and found with 95% certainty that greenhouse gas emissions from fossil fuel combustion are causing warmer temperatures and changing weather patterns. The panel predicts that anthropogenic warming would continue for centuries even if greenhouse gas emissions were to be stabilized,

Sources: United Nations' Intergovernmental Panel on Climate Change