97-98% of published climate researchers believe that humans are causing global warming. 97.4% of publishing climatologists and 90% of all earth scientists believe that man made global warming is occurring. This picture shows that out of 100 people only 3 don't believe that humans are impacting global warming.
Some scientists believe that human emissions are not effecting global climate change but it is just a pattern in the earths history. Natural effects of the global patterns the Earth is following is effecting the temperature change that we are receiving. The Earth goes through cycles of heating and cooling, some have predicted that this is one of the heating periods. The last heating period had the same effect on the atmosphere. Approximately the same temperature rise happened during the Holocene, with a rise of 1.8 degrees Fahrenheit. Explosions on the sun, sun spots, could be another factor of natural climate change. The heat the explosions on the sun causes the earth could be a key factor in the warmer of the planet instead of human impact.