the.com/irrigation
humanity's oldest hack: bribing rivers to visit fields they'd never choose on their own
means the deliberate supply of water to crops or land through channels, pipes, or sprinklers to help plants grow where rainfall won't do the job alone
from from Latin 'irrigare,' to water or moisten — built from 'in-' (into) plus 'rigare' (to wet, to lead water). The same 'rigare' likely waters the word 'rain'-adjacent ideas across Indo-European, though the cousins are debated. It entered English in the early modern period, first as a medical term for washing a wound, then spreading outward to the fields where it now mostly lives.
- ancient roots
- Mesopotamians watered crops over 8,000 years ago
- thirsty habit
- consumes about 70% of global freshwater use
- salt curse
- over-irrigation leaves soil too salty to farm
- drip genius
- Israeli drip systems slashed water waste dramatically
- sky version
- center-pivot circles are visible from space
aswan high dam — irrigates 96% of egypt's arable land, completed 1970
indus waters treaty — governs irrigation rights between india and pakistan for 33 million acres since 1960
central valley project — irrigates 1 million acres in california, supplies water to 20 million people