In response to Thomas Standard’s letter (Jan. 25), I agree that temperature measurement can be complex. But trained scientists, such as the ones he references, are up to that task.
As an example, 10 thermometers placed in 10 randomly selected locations in Androscoggin County would produce different results for today’s noon temperature. The reasons are understandable: urban areas, for example, are warmer than rural ones, and peaks are cooler than low spots.
But consistent measurements — day after day and year after year at the same times and locations — allow scientists to compute valid averages and make valid conclusions about the overall trend. It is not necessary to measure in every possible location.
People need only look at how the Maine spring has advanced by several weeks during the past few decades to understand that the climate is warmer than it used to be.
Anne Williams, Lewiston
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