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Strong Storms of the Little Ice Age on the Southern Coast of Brazil

Paper Reviewed
Oliveira, F.M., Macario, K.D., Simonassi, J.C., Gomes, P.R.S., Anjos, R.M., Carvalho, C., Linares, R., Alves, E.Q., Castro, M.D., Souza, R.C.C.L. and Marques Jr., A.N. 2014. Evidence of strong storm events possibly related to the Little Ice Age in sediments on the southern coast of Brazil. Palaeogeography, Palaeoclimatology, Palaeoecology 415: 233-239.

Writing in Palaeogeography, Palaeoclimatology, Palaeoecology, Oliveira et al. (2014) describe how "late Holocene environmental changes on the southeastern Brazilian coast were assessed using a high-resolution paleo-productivity proxy record from a sediment core collected at 14 m water depth in the Pantano do Sul Inlet," while "mollusk shells from the core were AMS dated, and sediment grain size, concentrations of organic carbon and total nitrogen, and δ13C and δ15N values were determined to investigate changes in paleoceanographic and paleoclimatic conditions over the depositional period."

This work revealed, as the eleven researchers describe it, that "most of the parameters showed strong fluctuations in the depth interval corresponding to the Little Ice Age, between 1560 and 1700 AD, that were marked by first an increase then a decrease of input of terrigenous sediments to the inlet." And they say that "fluctuations in geochemical proxies, grain size and sediment ages are evidence of severe storms with higher waves impacting the Pantano do Sul Inlet and that they may have encroached into inner littoral areas during the Little Ice Age."

These new findings provide additional evidence that help to refute (1) the long-held climate-alarmist claim that the Little Ice Age was not a truly global phenomenon, as well as (2) the climate-alarmist contention that warmer climates tend to be host to more extreme weather phenomena than colder climates.

Posted 8 April 2015