Climate scientists tell us that they are 97% certain that humans are the cause of climate change.
In the context of state of the art science, I will robustly explain the graph below
Starting in 1880, humans were feeding their horses lots of gassy oats – which produced a huge epidemic of farting. Later, the introduction of the Model T was the beginning of automobile emissions – which replaced the horse farts.
This constant farting and gassing continued until 1939, when humans decided to start putting massive amounts of aerosols into the atmosphere – and caused 35 years of linear global cooling. Overnight, humans suddenly increased their aerosol emissions by a factor of 10 or 100.
This explanation is completely robust, and makes lots more sense than blaming the weather on the solar cycles or ocean cycles – if you have the IQ of a turnip or received a climate science education in college.