Coal combustion is one of the largest contemporary sources of anthropogenic mercury (Hg). It releases geologically sequestered Hg to the atmosphere, and fly ash can contaminate terrestrial and aquatic systems. We estimate that coal combustion has released a cumulative total of 38.0 (14.8-98.9, 80% C.I.) Gg (gigagrams, 109g or thousand tonnes) of Hg to air, land, and water up to the year 2010, m...

Reseña de la obra Ginger, Andrew. Instead of Modernity. The Western canon and the incorporation Hispanic (c. 1850-75). Manchester: Manchester University Press, 2020.

Arthropoda is comprised of four major taxa: Hexapoda, Crustacea, Myriapoda and Chelicerata. Although this classification is widely accepted, there is still some debate about the internal relationships of these groups. In particular, the phylogenetic position of Collembola remains enigmatic. Some molecular studies place Collembola into a close relationship to Protura and Diplura within the monop...

Puertos, sociedad y conflictos en el caribe colombiano, 1850 – 1930. Sergio Paolo Solano de Las Aguas. Observatorio del Universidad Cartagena, Bogota, 2003. 115 Pags.

I trace the evolution of gun culture in U.S., starting with prehistorical normality and significance projectile weaponry among Homo sapiens, then turning to largely practical use firearms as tools Colonial, Revolutionary, Early Republic eras (ca. 1607–1850). highlight emergence Gun Culture 1.0, which centered on sport hunting, recreation, collecting was core American from approximately 1850 201...

Abstract The El Niño-Southern Oscillation (ENSO) used to affect the Asian summer monsoon (ASM) and Australian (AusSM) precipitation in different ways but global warming may have changed it. This study built robust annual ASM reconstructions during 1588–2013 (1588–1999) examine ENSO-monsoon relationship how it has changed. During period of 1588–1850 when natural climate variability was dominant,...

Today’s Mediterranean landscapes result from the interaction between ecosystems and anthropogenic activities. This study aims to assess how land-use changes mid-nineteenth end of twentieth century influenced temporal continuity in central Apennines (central Italy). Information was acquired Gregorian cadastral maps, orthophotos aerial photos (1850, 1954, 1980 2010), digitised georeferenced using...