A writer on climate change offered to provide “thousands of peer-reviewed articles” from experts in climate and environmental sciences that are in agreement [“Act on climate change,” Letters, Jan. 3].

Is the writer aware that there are also hundreds of peer-reviewed articles that disagree with his position that global warming is man-made? And that data and methods used to reconstruct the temperature record of the past 1,000 years, which are used to create the “hockey stick” graph, have been disputed?

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Rather than being “deniers,” many scientists express skepticism regarding the severity of the changes in the environment and the extent to which humanity is impacting these changes.

John Ryan, Flushing