Charged particles from beyond solar system possibly affect the pace, but the extent is not clear. The role of the cosmic rays has been highlightedin a paper by the former ISRO Chairman, U.R. Rao
Dr. Rao points to a nine per cent reduction in the intensity of cosmic rays during the past 150 years
THIRUVANANTHAPURAM: The impact of cosmic rays on global warming needs to be assessed.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/expert-wants-cosmic-rays-impact-global-warming-assessed
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/hindu-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-change
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-science
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/atmosphere-science
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ministry-environment-and-forests-moef