Using old tree rings and archival documents, historians and climate scientists have detailed an extreme cold period in Scotland in the 1690s that caused immense suffering. It may have lessons for Brexit-era politics.
tree rings Archives - State of the Planet
On a peninsula within sight of New York City, researchers are studying trees dating as far back as the early 1800s. Rising seas and more powerful storms, both fueled by climate change, could eventually spell their end.
Centuries-old trees on a peninsula near New York City could provide an important record of past storms. Researchers recently traveled there to sample the trees before they are wiped out by rising seas and powerful storms.
Measurements of stable isotopes in tree rings may expand the climate information that scientists can get from old trees.
Accounting for Volcanoes Using Tools of Economics
Climate scientists teamed up with an econometrics expert to develop an innovative new method for picking out past volcanic eruptions in temperature reconstructions going back millennia and gauging their impact on the climate.
“If climate change is having an impact and is making droughts worse, then we should see this in the record over several centuries—and we do,” said the study’s author, Benjamin Cook.
On every continent and ocean, Earth Institute field researchers are studying the dynamics of climate, geology, natural hazards and ecology, and their practical applications to modern problems. Below, a list of expeditions in rough chronological order. Work in and around New York City and the U.S. Northeast is listed separately toward bottom. Unless otherwise stated, projects originate with… read more
A new international consortium of scientists is bringing the history of temperature fluctuations across the entire Northern Hemisphere to life.
Annual tree rings are a rare find in the tropical islands of the eastern Pacific. The new discovery of trees with annual rings on a Hawaiian volcano could provide new climate data from a part of the world where much of the variability of the El Niño-Southern Oscillation originates.
Researchers from eight universities, including Columbia University, are using tree ring and glacier analysis to reconstruct the climate history of the Missouri River Basin in order to give policymakers and water managers better decision-making tools to manage the river.