Noun
megadrought (plural megadroughts)
(climatology) A drought lasting for decades or centuries.
A new study says the time has arrived: a megadrought as bad or worse than anything even from known prehistory is very likely in progress, and warming climate is playing a key role. Source: Internet
The emergence of skin pigmentation dates to after this, perhaps some 1.5 million years ago (about the time of the emergence of Homo heidelbergensis ), when the earth endured a megadrought that drove early humans into arid, open landscapes. Source: Internet
Samples from the megadrought times had little pollen or charcoal, suggesting sparse vegetation with little to burn. Source: Internet
There’s debate among scientists over whether this current drought warrants the title “megadrought” because so far it has only lasted two decades and others are at least 28 years long. Source: Internet