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Regional climate change and national responsibilities

James E. Hansen; Makiko H. Sato

Title:
Regional climate change and national responsibilities
Author(s):
Hansen, James E.
Sato, Makiko H.
Date:
Type:
Articles
Department(s):
Earth and Environmental Sciences
Earth Institute
Volume:
11
Persistent URL:
Book/Journal Title:
Environmental Research Letters
Publisher:
IOP Publishing
Abstract:
Global warming over the past several decades is now large enough that regional climate change is emerging above the noise of natural variability, especially in the summer at middle latitudes and year-round at low latitudes. Despite the small magnitude of warming relative to weather fluctuations, effects of the warming already have notable social and economic impacts. Global warming of 2 °C relative to preindustrial would shift the 'bell curve' defining temperature anomalies a factor of three larger than observed changes since the middle of the 20th century, with highly deleterious consequences. There is striking incongruity between the global distribution of nations principally responsible for fossil fuel CO2 emissions, known to be the main cause of climate change, and the regions suffering the greatest consequences from the warming, a fact with substantial implications for global energy and climate policies.
Subject(s):
Global warming
Fossil fuels--Environmental aspects
Climatic changes--Government policy
Climatic changes
Public policy (Law)
Publisher DOI:
https://doi.org/10.1088/1748-9326/11/3/034009
Item views
65
Metadata:
text | xml
Suggested Citation:
James E. Hansen, Makiko H. Sato, , Regional climate change and national responsibilities, Columbia University Academic Commons, .

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