In 2011, a number of scientists such Gavin Schmidt, Roger A. Pielke Jr., Stephan Lewandowsky and Michael Ashley have criticised that E&E has low standards of peer review and little impact.Stephan Lewandowsky, Michael Ashley: The weird and wacky world of climate change denial. The Australian. 22. june 2011. In addition, Ralph Keeling criticized a paper in the journal which claimed that CO2 levels were above 400 ppm in 1825, 1857 and 1942, writing in a letter to the editor, "Is it really the intent of E&E to provide a forum for laundering pseudo-science?"
