Atmospheric concentrations of the powerful greenhouse gas nitrous oxide (N 2 O) have
increased dramatically over the last 100 years, and part of these emissions come from …

East African landscapes today are the result of the cumulative effects of climate and land-
use change over millennial timescales. In this review, we compile archaeological and …

In rivers, small and lightweight microplastics are transported downstream, but they are also
found frequently in riverbed sediment, demonstrating long-term retention. To better …

Rivers are important ecosystems under continuous anthropogenic stresses. The hyporheic
zone is a ubiquitous, reactive interface between the main channel and its surrounding …

The hyporheic zone, defined by shallow subsurface pathways through river beds and banks
beginning and ending at the river, is an integral and unique component of fluvial systems. It …

Protecting or restoring aquatic ecosystems in the face of growing anthropogenic pressures
requires an understanding of hydrological and biogeochemical functioning across multiple …

In this chapter, the authors provide a comprehensive analysis and synthesis of the
interactions between important drivers and controls of hyporheic exchange and …

Essentially all hydrogeological processes are strongly influenced by the subsurface spatial
heterogeneity and the temporal variation of environmental conditions, hydraulic properties …

Chlorinated ethenes (CEs) are legacy contaminants whose chemical footprint is expected to
persist in aquifers around the world for many decades to come. These organohalides have …

Denitrification is the main process removing nitrate in river drainage basins and buffer input
from agricultural land and limits aquatic ecosystem pollution. However, the identification of …