South Korea is updating its national weather warning system for the first time in 18 years, introducing a new top-tier "extreme heat emergency" alert. This change reflects a significant increase in heatwave days and tropical nights over the past five years. The new alert will be activated when perceived temperatures reach 38°C or actual temperatures hit 39°C, signaling a serious threat to public health and infrastructure. AI
RANK_REASON Government policy change regarding weather alerts. [lever_c_demoted from significant: ic=1 ai=0.0]
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