Exceptional drought events, known as megadroughts, have occurred on every continent
outside Antarctica over the past~ 2,000 years, causing major ecological and societal …

Ecologists have long studied patterns, directions and tempos of change, but there is a
pressing need to extend current understanding to empirical observations of abrupt changes …

We review results from field experiments that simulate drought, an ecologically impactful
global change threat that is predicted to increase in magnitude, extent, duration and …

Asian summer monsoon (ASM) variability and its long-term ecological and societal impacts
extending back to Neolithic times are poorly understood due to a lack of high-resolution …

The Classic Maya have long presented scholars with vexing problems. One of the longest
running and most contested of these, and the source of deeply polarized interpretations, has …

Snow plays a fundamental role in global water resources, climate, and biogeochemical
processes; however, no global snow drought assessments currently exist. Changes in the …

The Asian monsoon (AM) played an important role in the dynastic history of China, yet it
remains unknown whether AM-mediated shifts in Chinese societies affect earth surface …

The hydrologic cycle is a fundamental component of the climate system with critical societal
and ecological relevance. Yet gaps persist in our understanding of water fluxes and their …

The new excess term of the triple oxygen isotope composition in meteoric water, expressed
as∆′ 17 O, is conceived to track the component of kinetic fractionation in the water cycle …

The analysis of hydrogen (δD) and oxygen (δ18O) isotope ratios of H2O are widely used
tools for studies of the hydrological cycle (Friedman 1953; Dansgaard 1954; Gonfiantini …