Additional Greenhouse effect is extremely likely to be happening

In 2014, the Intergovernmental Panel on Climate Change [IPCC] published the Synthesis of the 5th Assessment Report. The results of their investigations are stated very clearly. Warming of the climate system is unequivocal. The atmosphere and the ocean have warmed, the amounts of snow/ice have diminished, and the sea level has risen. In addition, the mean surface temperature in 2014, based on global