Original sentence: However, recently this view has been questioned (Bradley and Jones, 1993; Hughes and Diaz, 1994; Crowley and Lowery, 2000).It was initially believed that the temperature changes were global.The 2001 IPCC report summarises this research, saying: "…current evidence does not support globally synchronous periods of anomalous cold or warmth over this timeframe, and the conventional terms of 'Little Ice Age' and 'Medieval Warm Period' appear to have limited utility in describing trends in hemispheric or global mean temperature changes in past centuries
Edited sentence: Corals in the tropical Pacific ocean suggest that relatively cool, dry conditions may have persisted early in the millennium, consistent with a La Niña-like configuration of the ENSO patterns.The 2001 IPCC report summarises research that questions the view that the MWP was a global phenomenon (Bradley and Jones, 1993; Hughes and Diaz, 1994; Crowley and Lowery, 2000).The IPCC report claims: "…current evidence does not support globally synchronous periods of anomalous cold or warmth over this timeframe, and the conventional terms of 'Little Ice Age' and 'Medieval Warm Period' appear to have limited utility in describing trends in hemispheric or global mean temperature changes in past centuries