drought
Drought refers to prolonged periods of water deficit that stress plants by limiting the moisture available for cellular processes, growth, and reproduction. For plant science, understanding drought is critical because water availability governs nearly every aspect of plant physiology, from stomatal regulation and photosynthesis to root architecture and metabolite production. Research into plant drought responses drives advances in crop resilience, enabling the development of varieties that can sustain yield under increasingly arid conditions driven by climate change.
open_in_new WikipediaPubMed · 2026-05-08
A 220-year cave mineral record from China reveals that East Asian monsoon collapses — driven by low solar activity and amplified by ocean circulation — triggered megadroughts that caused widespread crop failure and even contributed to the Taiping Rebellion. The findings show a clear link between monsoon extremes and societal instability, with implications for future climate resilience.
Five major monsoon extremes between 1787 and 2007 CE caused megadroughts across China, each triggered by reduced solar output and amplified by Atlantic and Pacific ocean-atmosphere interactions.
A rapid flood-to-drought switch in the 1850s is linked to contributing factors behind the Taiping Rebellion (1851–1864 CE), one of history's deadliest conflicts, illustrating direct climate-to-crop-to-conflict pathways.
The East Asian summer monsoon has shown a persistent weakening trend since the end of the Little Ice Age (~1850), overlaid by decadal oscillations that can rapidly destabilize agricultural regions.