Keith R. Briffa (born 1952) is a climatologist employed since 1977 by the Climatic Research Unit at the University of East Anglia, of which he is currently deputy director. In his professional work, he focuses on the climate change in late Holocene, with a special focus on northern portions of Europe and Asia. Briffa's preferred method is dendroclimatology, which is a set of procedures intended to decode information about the past climate from tree rings. Briffa helped develop data sets from trees from Canada, Fennoscandia, and northern Siberia which have been used in climate research. 
- Osborn T.J. and K.R. Briffa (2006). "The spatial extent of 20th-century warmth in the context of the past 1200 years". Science 311 (5762): 841–4. Bibcode:2006Sci...311..841O. doi:10.1126/science.1120514. PMID 16469924.
- Briffa K.R., et al. (2008). "Trends in recent temperature and radial tree growth spanning 2000 years across northwest Eurasia". Phil. Trans. R. Soc. B 363 (1501): 2269–82. doi:10.1098/rstb.2007.2199. PMC 2606779. PMID 18048299.
- Briffa K.R., et al. (2002). "Unusual twentieth-century summer warmth in a 1,000-year temperature record from Siberia". Nature 376 (6536): 156–9. Bibcode:1995Natur.376..156B. doi:10.1038/376156a0.
- Briffa K.R., et al. (2001). "Low-frequency temperature variations from a northern tree ring density network". Journal of Geophysical Research. 106 (D3): 2929–2941. Bibcode:2001JGR...106.2929B. doi:10.1029/2000JD900617.
- Briffa, K.R. (2000). "Annual climate variability in the Holocene: interpreting the message of ancient trees". Quaternary Science Reviews 19 (1-5): 87–105. Bibcode:2000QSRv...19...87B. doi:10.1016/S0277-3791(99)00056-6.
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