Editing IPCC:AR6/WGI/Chapter-Atlas (section)

===== Atlas.5.4.1.2 Findings From Previous IPCC Assessments =====

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The AR5 WGI showed that the mean annual temperature of South East Asia has been increasing at a rate of 0.14°C–0.20°C per decade since the 1960s, along with an increasing number of warm days and nights, and a decreasing number of cold days and nights ( [[#Christensen--2013|Christensen et al., 2013]] ). The AR5 also reported the lack of sufficient observational records to allow for a full understanding of past precipitation trends in most of the Asian region, including South East Asia, and that precipitation trends that were available differed considerably across the region and between seasons ( [[#Christensen--2013|Christensen et al., 2013]] ).

On projected changes, findings from AR5 showed that warming is ''very likely'' to continue with substantial sub-regional variations over South East Asia ( [[#Christensen--2013|Christensen et al., 2013]] ). The median increase in temperature over land projected by the CMIP5 ensemble mean ranges from 0.8°C in RCP2.6 to 3.2°C in RCP8.5 by the end of the 21st century. Moderate future increases in precipitation are ''very likely'' , with projected ensemble mean increases of 1% in RCP2.6 to 8% in RCP8.5 by 2100. In SR1.5, there is a projected increase in flooding and runoff over South East Asia for a 1.5°C to 2°C global warming, and these will increase even more for a greater than 2°C level of warming ( [[#Hoegh-Guldberg--2018|Hoegh-Guldberg et al., 2018]] ).

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