Sentences with phrase «ancient climate swings»
Not exact matches
Thus it was easy to dismiss the large climate swings that an Arizona astronomer, Andrew Ellicott Douglass, reported from his studies of tree rings recovered from ancient buildings and Sequoias.
https://history.aip.org/
Ancient trees reveal that the El Niño and La Niña events that wreak havoc on climate worldwide have been even more extreme than anyone knew, a revelation that suggests wilder swings in the future as the world gets warmer.
Scientists drilling deep into ancient rocks in the Arizona desert say they have documented a gradual shift in Earth's orbit that repeats regularly every 405,000 years, playing a role in natural climate swings.