NASA called the soaring heat “part of a pattern of increasing global temperatures, as a result of human activities, mainly carbon dioxide emissions.”
4 points
Is Mauna Loa controversial? https://gml.noaa.gov/ccgg/trends/
Also this resource might be of help: https://skepticalscience.com/argument.php They collect, categorize and quantify the most popular denials, and answer them with science. The answers are available in different detail levels and languages.
4 points
