
Unobserved time effects confound the identification of climate change impacts.
Publication
, Journal Article
Auffhammer, M; Vincent, JR
Published in: Proceedings of the National Academy of Sciences of the United States of America
July 2012
A recent study by Feng et al. [Feng S, Krueger A, Oppenheimer M (2010) Proc Natl Acad Sci USA 107:14257-14262] in PNAS reported statistical evidence of a weather-driven causal effect of crop yields on human migration from Mexico to the United States. We show that this conclusion is based on a different statistical model than the one stated in the paper. When we correct for this mistake, there is no evidence of a causal link.
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Published In
Proceedings of the National Academy of Sciences of the United States of America
DOI
EISSN
1091-6490
ISSN
0027-8424
Publication Date
July 2012
Volume
109
Issue
30
Start / End Page
11973 / 11974
Related Subject Headings
- Humans
- Emigration and Immigration
- Crops, Agricultural
- Climate Change
- Causality
Citation
APA
Chicago
ICMJE
MLA
NLM
Auffhammer, M., & Vincent, J. R. (2012). Unobserved time effects confound the identification of climate change impacts. Proceedings of the National Academy of Sciences of the United States of America, 109(30), 11973–11974. https://doi.org/10.1073/pnas.1202049109
Auffhammer, Maximilian, and Jeffrey R. Vincent. “Unobserved time effects confound the identification of climate change impacts.” Proceedings of the National Academy of Sciences of the United States of America 109, no. 30 (July 2012): 11973–74. https://doi.org/10.1073/pnas.1202049109.
Auffhammer M, Vincent JR. Unobserved time effects confound the identification of climate change impacts. Proceedings of the National Academy of Sciences of the United States of America. 2012 Jul;109(30):11973–4.
Auffhammer, Maximilian, and Jeffrey R. Vincent. “Unobserved time effects confound the identification of climate change impacts.” Proceedings of the National Academy of Sciences of the United States of America, vol. 109, no. 30, July 2012, pp. 11973–74. Epmc, doi:10.1073/pnas.1202049109.
Auffhammer M, Vincent JR. Unobserved time effects confound the identification of climate change impacts. Proceedings of the National Academy of Sciences of the United States of America. 2012 Jul;109(30):11973–11974.

Published In
Proceedings of the National Academy of Sciences of the United States of America
DOI
EISSN
1091-6490
ISSN
0027-8424
Publication Date
July 2012
Volume
109
Issue
30
Start / End Page
11973 / 11974
Related Subject Headings
- Humans
- Emigration and Immigration
- Crops, Agricultural
- Climate Change
- Causality