Scafetta and West also agree, however, that most of the warming during the past 30 years must be anthropogenic in origin.  Finally, an news article in New Scientist reports on recent projections by several European solar experts that the unusually high level of sunspot activity observed in recent decades may begin to decrease fairly quickly again in the near future.
Scafetta et West concÃ¨dent nÃ©anmoins que la plus grande partie du rÃ©chauffement au cours des 30 derniÃ¨res annÃ©es doit Ãªtre due aux activitÃ©s humaines.   Finalement, un article de nouvelles du New Scientist fait Ã©tat de projections rÃ©centes effectuÃ©es par plusieurs spÃ©cialistes europÃ©ens en physique solaire selon lesquelles l'activitÃ© anormalement Ã©levÃ©e des taches solaires observÃ©e au cours des derniÃ¨res dÃ©cennies pourrait commencer Ã dÃ©croÃ®tre assez rapidement dans un proche avenir.