The early 20th century warming: Anomalies, causes, and consequences.

ABSTRACT: The most pronounced warming in the historical global climate record prior to the recent warming occurred over the first half of the 20th century and is known as the Early Twentieth Century Warming (ETCW). Understanding this period and the subsequent slowdown of warming is key to disentangling the relationship between decadal variability and the response to human influences in the present and future climate. This review discusses the observed changes during the ETCW and hypotheses for the underlying causes and mechanisms. Attribution studies estimate that about a half (40-54%; p > .8) of the global warming from 1901 to 1950 was forced by a combination of increasing greenhouse gases and natural forcing, offset to some extent by aerosols. Natural variability also made a large contribut

SUBMITTER: Hegerl GC 

PROVIDER: S-EPMC6033150 | biostudies-literature | 2018 Jul-Aug

REPOSITORIES: biostudies-literature