Limiting global warming to 1.5 °C will lower increases in inequalities of four hazard indicators of climate change
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Date
2019-12
Publication Type
Journal Article
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yes
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Abstract
Clarifying characteristics of hazards and risks of climate change at 2 °C and 1.5 °C global warming is important for understanding the implications of the Paris Agreement. We perform and analyze large ensembles of 2 °C and 1.5 °C warming simulations. In the 2 °C runs, we find substantial increases in extreme hot days, heavy rainfalls, high streamflow and labor capacity reduction related to heat stress. For example, about half of the world's population is projected to experience a present day 1-in-10 year hot day event every other year at 2 °C warming. The regions with relatively large increases of these four hazard indicators coincide with countries characterized by small CO2 emissions, low-income and high vulnerability. Limiting global warming to 1.5 °C, compared to 2 °C, is projected to lower increases in the four hazard indicators especially in those regions.
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published
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Journal / series
Volume
14 (12)
Pages / Article No.
124022
Publisher
IOP Publishing
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Edition / version
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Software
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Date collected
Date created
Subject
Climate change; Climate model; Paris agreement; Inequality
Organisational unit
03777 - Knutti, Reto / Knutti, Reto