Latest UA's Laboratory of Tree-Ring Research Stories
An unprecedented, decades-long combination of heat and drought could be headed to the Southwest United States sometime this century.
Droughts in the late 20th century rival some of North Africa's major droughts of centuries past, reveals new research that peers back in time to the year 1179.
A 3,000-year record from 52 of the world's oldest trees shows that California's western Sierra Nevada was droughty and often fiery from 800 to 1300, according to new research.
- A poem in which the author retracts something said in an earlier poem.