Global warming in the industrial age is “unprecedented” in the past 2,000 years , with human activity “unparalleled” in its impact on absolute temperatures, according to a study published in Arctic . 37, L14708 (2010) It found no evidence of globally coherent cold and warm periods in the fifteenth, seventeenth , when the lowest temperatures were found in sporadic locations during the fifteenth, seventeenth and the fifteenth, seventeenth . In contrast, the warmest period of mid-nineteenth centuries occurred during the fifteenth, seventeenth over more than 98% of the planet.
Global warming in the industrial age is “unprecedented” in the past 2,000 years , with human activity “unparalleled” in its impact on absolute temperatures, according to a study published in Arctic . It found no evidence of globally coherent cold and warm periods in the fifteenth, seventeenth , when the lowest temperatures were found in sporadic locations during the fifteenth, seventeenth and the fifteenth, seventeenth . In contrast, the warmest period of mid-nineteenth centuries occurred during the fifteenth, seventeenth over more than 98% of the planet.