A Biblically based commentary on current issues that impact you

We Do Not Know What Cannot be Known

Why Future Climate Change is Unknown

By Bob DeWaay

In 1987, a man published a booklet that presented 88 reasons why Christ would return in 1988. Though many thousands were sold, the book was doomed to be wrong. Christ himself said that no one knows when he will return. In Christian theology, what we can know is revealed in the Bible. When Christ will return cannot be known. When it comes to what cannot be known, multiple reasons, evidence or collaborating authorities are worthless. What by nature cannot be known remains unknown no matter what.

I was converted to Biblical Christianity in 1971 when I was a junior student at Iowa State University studying chemical engineering. One of my last classes there before I switched to studying theology was physical chemistry. There we used differential calculus to write equations to predict where electrons would be in their orbits. That use of such calculus strained the limits of what can be validly predicted using it. It still does.

One day on the way to a chemical engineering class in the middle of winter, there were students protesting air pollution they saw as white smoke blowing across campus from our power plant. When I got to class, the professor told us that those students were protesting water vapor. When we have a clean burn of hydrocarbons, besides the release of energy, the by-products are CO2 and water. CO2 is invisible so what they saw that provoked the protest was water vapor. Over 45 years later, people are still protesting water vapor...

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