This article summarizes the changes in landscape structure because of human land
management over the last several centuries, and using observed and modeled data …

Differing perceptions of the impacts on hydrological functions of tropical forest clearance and
conversion to other land uses have given rise to growing and often heated debate about …

A changing climate can lead to changes in the frequency, intensity or duration of an extreme
event, or result in an 3 unprecedented, previously unobserved, extreme. As well, a weather …

Emissions of carbon dioxide, methane, nitrous oxide and of reactive gases such as sulphur
dioxide, nitrogen oxides, carbon monoxide and hydrocarbons, which lead to the formation of …

▪ Abstract Managed grazing covers more than 25% of the global land surface and has a
larger geographic extent than any other form of land use. Grazing systems persist under …

Expansion of the cattle and soy industries in the Amazon basin has increased deforestation
rates and will soon push all-weather highways into the region's core,,,. In the face of this …

This paper reviews recent progress made in our understanding of the functioning and
variability of the South American Monsoon System (SAMS) on time scales varying from …

Conservation scientists generally agree that many types of protected areas will be needed to
protect tropical forests. But little is known of the comparative performance of inhabited and …

An important goal of the Climate Variability and Predictability (CLIVAR) research on the
American monsoon systems is to determine the sources and limits of predictability of warm …

A climatology of the South American low-level jet east of the Andes (SALLJ) is developed
using the 1950–2000 circulation and moisture fields from the NCEP–NCAR reanalyses and …