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Universidade de São Paulo (USP). Instituto de Geociências (IGC) (Institutional affiliation from the last research proposal) Birthplace: Brazil
Cristiano M. Chiessi holds a B.Sc. degree (2001) in Geology from the Institute of Geosciences (IGc) at the University of São Paulo (USP), Brazil, an M.Sc. degree (2004) in Geosciences (with emphasis on Sedimentary Geology) from IGcUSP, and a Ph.D. degree (2008) in Natural Sciences (with emphasis on Paleoceanography and Paleoclimatology) from the University of Bremen, Germany. He conducted postdoctoral research at the National Institute for Space Research (INPE), Brazil, and at MARUMCenter for Marine Environmental Sciences, Germany. He is currently an Associate Professor (level 3) at the School of Arts, Sciences and Humanities (EACH) at USP. Additionally, he leads the Paleoceanography and Paleoclimatology Laboratory (P2L) at EACH, holds a top-tier research productivity fellowship (level A) from the Brazilian National Council for Scientific and Technological Development (CNPq), is a member of the Water Resources Working Group of the Safe Landing Climates initiative of the World Climate Research Programme (WCRP), a member of the Proxies of Ocean Circulation and Water Properties: Evaluation, Reconstruction and Simulation (POWERS) group, and a principal investigator at the Climate Crisis and Disasters Resilience Research Center (CLIMARES). He has been an Associate Fellow at the Hanse Institute for Advanced Study, a Senior Research Fellow of the Alexander von Humboldt Foundation, and a Visiting Researcher at the Alfred Wegener Institute for Polar and Marine Research, all in Germany. He has also served as a member of the Scientific Steering Committee of Past Global Changes (PAGES), the Science Framework Working Group of the 2050 Scientific Ocean Drilling (International Ocean Discovery Program, IODP), the Science Evaluation Panel of IODP, and Working Group 1 (Scientific Basis of Climate Change) of the Brazilian Panel on Climate Change (PBMC). His research focuses on Geosciences, particularly Paleoceanography, Paleoclimatology, and Climate Change. His main interests include abrupt climate change, Atlantic Meridional Overturning Circulation, multidecadal climate variability, the South American Monsoon System, surface and deep circulation in the South Atlantic, carbonate and bulk sediment geochemistry, the Quaternary, South America, and the South Atlantic. (Source: Lattes Curriculum)
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Brazil has shown an increase in the frequency of extreme weather and climate events in recent decades, especially in the last decade. All Brazilian biomes and populations were affected, while those living in susceptible areas as well as indigenous communities suffered the most. For example, disasters triggered by extreme rainfall have been the cause of thousands of deaths, which could hav…
The Amazon rainforest hosts the richest terrestrial biodiversity on Earth, is one of the largest surface carbon pools in the world and has historically been a major sink for anthropogenic CO2 emissions. However, anthropogenic changes in climate and land-use may push the Amazon rainforest towards irreversible degradation, characterizing it as a core tipping element of the climate system. T…
Brazil has shown an increase in the frequency of extreme weather and climate events in recent decades, especially in the last decade. All Brazilian biomes and populations were affected, while those living in susceptible areas as well as indigenous communities suffered the most. For example, disasters triggered by extreme rainfall have been the cause of thousands of deaths, which could hav…
Climate change affects life at all levels, from genetic structure of animal and plant populations to socio-economic organization of human communities. For Amazonia, current models project warmer and drier climates, which could make large areas unsuitable for species adapted to moist rainforest conditions and increase the susceptibility of vegetation to wildfires, thereby promoting savanni…
Negative synergies between climate change and deforestation may force the Amazon rainforest to cross a tipping point, resulting in large-scale substitution of rainforest by non-forest ecosystems. However, this possible dieback of the Amazon rainforest remains highly uncertain at least in part due to another similarly uncertain tipping element of the climate system, namely the Atlantic mer…
The Atlantic meridional overturning circulation (AMOC) plays a fundamental role in the oceanography and climate of the Atlantic realm. Atmosphere-ocean general circulation models have predicted a weakening in AMOC strength for the coming decades. Thus, a comprehensive understanding of the response of the western Atlantic Ocean to changes in AMOC on different time scales is a key issue. He…
(Only some records are available in English at this moment)
During the last glacial period, abrupt and cold millennial-scale events in the Northern Hemisphere weakened the Atlantic Meridional Overturning Circulation (AMOC) due to freshwater input from ice melting in regions of North Atlantic Deep Water (NADW) formation. These AMOC changes are commonly reconstructed using stable carbon isotope (¿13C) analyses in epibenthic foraminifera, which indic…
The Atlantic Meridional Overturning Circulation (AMOC) plays a crucial role in global oceanic circulation, influencing heat distribution in the Atlantic Ocean and impacting climate patterns worldwide. Several studies show the intricate relationship between AMOC and precipitation in the Amazon Basin, a vital aspect for the ecological and climatic sustainability of the Amazon Forest. Projec…
The understanding climate variability and extreme weather events in the western South Atlantic over the past 200 years presents numerous knowledge gaps. Important features of the climate system such as the Atlantic Meridional Overturning Circulation (AMOC), the Intertropical Convergence Zone (ITCZ), and the South Atlantic Convergence Zone (SACZ) lack a comprehensive understanding in this …
(Only some records are available in English at this moment)
The Atlantic Ocean comprises two main meridional circulation cells that play important roles in Earth's climate system. The upper cell transports waters from the Arctic southward, while the lower cell transports waters of Antarctic origin northward. During the glacial-interglacial transitions of the Quaternary, known as "glacial terminations," these two cells altered their geometry, with …
The global climate changes that occurred during the last glacial termination were accompanied by significant shifts in the Atlantic Meridional Overturning Circulation (AMOC). During the millennial-scale events of the last glacial termination, e.g., Heinrich Stadial 1 (HS1), CO2 accumulation at intermediate depths of the Atlantic was observed as a result of the weakening of the AMOC. These…
The Atlantic Meridional Overturning Circulation (AMOC) changes play an important role in the global carbon cycle. During millennial events (referred as Heinrich Stadials) that occurred in the last glacial-interglacial cycle, a reduction in ventilation and an increase in CO2 storage at mid-depths of the Atlantic occurred due to the weakening of the AMOC. These circulation changes, commonly…
(Only some records are available in English at this moment)
Anthropogenic climate change is contributing to a slowdown of the Atlantic Meridional Overturning Circulation (AMOC), a key component of global ocean circulation that regulates heat distribution and influences regional climates such as that of the Amazon Basin. Understanding the link between AMOC variability and Amazon precipitation is essential given the ecological relevance of the Amazo…
The Amazonian drainage system is responsible for creating highly dynamic landscapes as sediments from several sources are transported to distant sinks, playing a crucial role in shaping the biodiversity of this region. Precipitation changes in the headwaters of Amazonian rivers influence the flow of water and sediments in the drainage basin, that in turn can change the distribution and co…
Precipitation is arguably one of the main controlling factors of life on Earth, changes in its patterns can lead to social disruption and massive economic loss. Recent findings point to a possible human-driven collapse of the Atlantic Meridional Overturning Circulation (AMOC). Knowing the effects of such a collapse is crucial for decision-makers to build an efficient adaptation strategy. …
Terminations (i.e., transitions from glacial to interglacial periods) and interglacial periods are key intervals to understand climate dynamics under increasing and high atmospheric CO2 concentrations, such as Earth's present and future climates. Due to its intrinsic relationship with the Atlantic Meridional Overturning Circulation and its prominent role in controlling energy distribution…
(Only some records are available in English at this moment)
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| 5 / 5 | Ongoing scholarships in Brazil |
| 25 / 23 | Completed scholarships in Brazil |
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| 47 / 45 | All research grants and scholarships |
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