A May 14 letter is correct that science is not settled on the cause of climate change.
However, that science cannot prove the cause of climate change is not a shortcoming of science. Empirical science deals with evidence and inductive reasoning. Let's leave proof to the deductive reasoning of logic and mathematics. To criticize science for not providing conclusive proof of a theory or hypothesis is to misunderstand the nature of science.
The writer concludes by saying that simple common sense should prevail when understanding the cause of climate change. Unfortunately he does not offer what he believes is a common sense explanation. Perhaps this is because it was some years ago that common sense said that the Earth was flat and that the sun revolved around the Earth. Five hundred years ago people had very little choice in reaching conclusions concerning the truth. Common sense and religion was about all they had.
To rely today solely on common sense when understanding what is happening on our planet is to choose to remain ignorant.