Anthropogenic global warming
AGW is the concept of humans being the cause of the vast majority of global climate change or global warming.
Scientists have examined the natural cycles of the planet, of the volcanic emissions, of the solar flares, of the ocean currents, of the carbon cycle, etc.
Scientists have concluded humans are fully responsible for climate change.
"The best estimate in the 2014 IPCC report, representing the consensus of the world’s top climate scientists summarizing the body of climate research, was that humans have caused all the global warming over the past 65 years. The report concluded with 95% confidence that humans have caused most of the global warming since 1950. Climate scientists are as confident in human-caused global warming as medical scientists are that smoking causes cancer. There’s a 97% expert consensus on the subject." (Citation: Guardian)
The Fifth IPCC report says: "It is extremely likely [95 percent confidence] more than half of the observed increase in global average surface temperature from 1951 to 2010 was caused by the anthropogenic increase in greenhouse gas concentrations and other anthropogenic forcings together."