Integrated Economic and Climate Projections for Impact Assessment
Name
MITJPSPGC_Rpt243.pdf
Description
Main article
Size
1.51 MB
Format
Adobe PDF
Checksum (MD5)
84d4c96d79be3623a4293a2fef97aab5
Author(s)
Paltsev, Sergey
Monier, Erwan
Scott, Jeffery
Sokolov, Andrei
Reilly, John M.
Date Issued
May 2013
Publisher
MIT Joint Program
Citation
Report 243
Series/Report no.
MIT Joint Program Report Series;Report 243
Abstract
We designed scenarios for impact assessment that explicitly address policy choices and uncertainty in climate response. Economic projections and the resulting greenhouse gas emissions for the “no climate policy” scenario and two stabilization scenarios: at 4.5 W/m2 and 3.7 W/m2 by 2100 are provided. They can be used for a broader climate impact assessment for the US and other regions, with the goal of making it possible to provide a more consistent picture of climate impacts, and how those impacts depend on uncertainty in climate system response and policy choices. The long-term risks, beyond 2050, of climate change can be strongly influenced by policy choices. In the nearer term, the climate we will observe is hard to influence with policy, and what we actually see will be strongly influenced by natural variability and the earth system response to existing greenhouse gases. In the end, the nature of the system is that a strong effect of policy, especially directed toward long-lived GHGs, will lag by 30 to 40 years its implementation.
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