There are people and institutions whose main purpose is to study climate and many vehemently disagree that it is humans who are the main cause of any climate change. They are geologists, geophysicists, climatologists and meteorologists. The climate on earth has been making drastic changes for millions of years. March 2014 was supposed to be the warmest month on record. But here are several arguments against that heat wave being caused by human behavior.
Weather is always changing so extreme weather events are naturally caused. In 2013 Colorado State University produced the Tropical Meteorology Project Report which stated that the rise in the amount of CO2 produced over the past century had "little or no significant effect" on tropical cyclone activity globally. The report went on to state that hurricanes such as Sandy, Katrina, Rita and more were not a consequence of man made global warming.
Professor Judith Curry, head of Earth and Atmospheric Sciences at Georgia Institute of Technology, has stated that she was "unconvinced by any of the arguments that [she had] seen that attributes a single extreme weather event, a cluster of extreme weather events, or statistics of extreme weather events " to climate change caused by humans.
A study published in Geophysical Research Letters in 2009 stated that over the 20th century there were two Arctic warming periods followed by cooling periods in between. Their study concluded that these were caused by shifts in the ocean current that naturally occur and were not caused by greenhouse gasses caused by humans.
According to a 2012 study published in the Journal of Atmospheric and Solar-Terrestrial Physics, "up to 70 percent of the observed post-1850 climate change and warming could be associated to multiple solar cycles."
Human-produced CO2 is re-absorbed by oceans, forests, and other "carbon sinks," negating any climate changes. The Asia Pacific Journal of Atmospheric Science published a report in 2011, saying that there were climate models that predict more global warming to occur from CO2 emissions but that they will mainly be absorbed by the earth's oceans.
About 50 percent of the CO2 released by the burning of fossil fuels and other human activities has already been re-absorbed by the earth's carbon sinks they report. Furthermore, human-produced CO2 is re-absorbed by oceans, forests, and other "carbon sinks," negating any climate changes. From 2002-2011, 26 percent of human-caused CO2 emissions were absorbed specifically by the world's oceans.
Computers can't accurately model past temperature fluctuations during the Ice Age so they shouldn't be relied on to predict future climate fluctuations. The predictions that humans cause the climate to change more rapidly than in the past are inaccurate. The Global Warming Policy Foundation reported in 2014 that the oceans have been slowly rising for the past 10,000 years with no help from human activity.
We should rely on the findings of scientists who have nothing to gain. Governments, politicians and fear- mongering journalists with sensational stories are the ones who have something to gain!