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Thus, studying this variation leads to improved understanding of past environmental conditions and is the basis for many research applications of dendrochronology.

A key distinction of dendrochronology is that all trees rings being analyzed are dated to their correct year of formation.

At first glance, it appears easy to date tree rings by just counting them, but reality is often more complicated than that.

Due to the sweeping and diverse applications of this data, specialists can come from many academic disciplines.

There is much we can learn about the past climate, how freak season-long weather conditions, or periods of climate change have affected tree growth and how it may affect our climate in future.

He was right, and the more trees that were added to the record, the greater the size of the data could be extrapolated and the more complete picture we could build of our past climate.They are the lungs of the world, breathing in carbon dioxide and breathing out the oxygen on which animal life depends.They live in all sorts of conditions too: in temperate and tropical areas and in arid locations, from mountain landscapes to the rainforests of the equator and the temperate uplands of Scandinavia, they are everywhere.Numerous studies illustrate how ring-counting leads to incorrect conclusions drawn from inaccurate dating.Dendrochronologists demand the assignment of a single calendar year to a single ring.

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