Florida State University News FSU researchers find La Niña increases carbon export from Amazon River July 29, 2021 | 12:36 pm | SHARE: The Amazon River at Óbidos, Brazil. Researchers examined data taken at this city near the mouth of the river to investigate how La Niña events affect the amount of carbon exported from the river. (Photo by Chris Linder) When La Niña brings unusually warm waters and abnormal air pressure to the Pacific Ocean, the resulting weather patterns create an increase in the carbon export from the Amazon River, new research from Florida State University has found. Rob Spencer, an associate professor in FSU’s Department of Earth, Ocean and Atmospheric Science, takes a sample in the Amazon River near Óbidos, Brazil. (Photo by Chris Linder)