TUCSON, Aug. 7 (UPI) -- A U.S.-led study has used tree rings to investigate human-induced climate change that's projected to cause drier conditions in the mid-latitudes.
... , researchers have long studied a variety of materials, from tree rings to air trapped in glacial ice ... would be picked up by top predators as well as by trees. And they further suspected that measurements from predators would ...
... temperatures. But the analysis of carbon and oxygen isotopes in tree rings can also provide accurate data on past ... costs have been prohibitive, especially when compared with the examination of tree ring width. Now, however, the cost ...
... can live more than 3,000 years. "It's the longest tree-ring fire history in the world, and it's from this amazing ... of the University of Arizona in Tucson. "This is an epic collection of tree rings." The new research extends Swetnam ...
... of research into 7,000 years of Irish tree rings to a City banker and part-time ... -catastrophist; in particular I wish to link the tree-ring and ice core chronologies so ... , such as those around AD540 or 44BC, in human records, in tree-ring records and in ice core records ...
Snow gum tree rings are used to explore the history and chronology of climate, including temperature of past seasons and more.
David Stahle travels to ancient forests around the world, collecting tree rings to learn more about major climate and historical events dating back hundreds and thousands of years.
... scientists has now shown that annually resolved tree-ring records from North America, particularly ... in the May 6 issue of Nature Climate Change. Tree rings in the US Southwest, the team found, agree ...
MANOA, Hawaii, May 6 (UPI) -- Tree rings in the American Southwest provide clues to future El Nino and La Nina cycles in a changing climate, scientists say.
NEW YORK, May 27 (UPI) -- Scientists say tree-ring data from the American Southwest is providing a 1,100-year history of the global climate effects of the El Nino and La Nina cycles.
Nibbling by herbivores can have a greater impact on the width of tree rings than climate, new research has found. The study ... of the NTNU Museum of Natural History and Archaeology: "We found tree ring widths were more affected by sheep than the ambient ...
COLLEGE STATION, Texas, Sept. 7 (UPI) -- Tree rings can yield valuable information on forest fires, even ones that occurred hundreds of years ago, a U.S. researcher says.
Scientists say that accelerated growth in the tree rings of bristlecone pines appears to be linked to climate change.
... caused by past volcanic eruptions may not be evident in tree-ring reconstructions of temperature change because ... growing seasons, according to climate researchers, who compared tree-ring temperature reconstructions with model simulations ...
Scientists begin their search for tree rings that might explain the history of droughts in Guatemala.
