Julie Brigham-Grette University of Massachusetts Julie Brigham-Grette of the University of Massachusetts, Amherst is leading an international team of scientists in a major field project in Siberia. The scientists are gathering data that should provide the most detailed record of past Arctic climate to date. "The bottom line is the more we can learn about how the Earth system worked in the past, the more we can be prepared for the future," she says. Understanding the natural climatic variations of the Arctic ­ such as which aspects are cyclic and which are stable ­ will illuminate how the region evolved from a warm ecosystem blanketed in forest to a cold one covered in permafrost. And ultimately it could give scientists a glimpse at the Arctic of tomorrow, says Brigham-Grette.

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