Link to 400 kb pdf file of David’s provocative and original updated (May 2007) paper which says we are coming into a weaker solar cycle and that a cooler climate is likely in decades ahead. David also explains that the Greenhouse effect due to carbon dioxide is miniscule, as does the 1998 paper by Sherwood Idso.
See, How MINISCULE is the Anthropogenic Greenhouse Effect ? an html version of a 1998 paper by Sherwood B Idso in Vol 10: 69-82 of Climate Research, “CO2-induced global warming: a skeptic’s view of potential climate”.
See also Jack Barrett’s paper: Greenhouse molecules, their spectra and function in the atmosphere