Six hundred years of South American tree rings reveal an increase in severe hydroclimatic events since mid-20th century.
Proc Natl Acad Sci U S A. 2020 Jul 21;117(29):16816-16823. doi: 10.1073/pnas.2002411117. Epub 2020 Jul 6.
Proc Natl Acad Sci U S A. 2020.
PMID: 32632003
Free PMC article.