Stop giving early and late Arctic seasons the ‘cold shoulder’, say LTER scientists

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Streams LTER Research Assistant Frances Iannucci (a coauthor on the study) recording dissolved oxygen in a watershed associated with the Arctic LTER.

Climate change is hitting Arctic ecosystems hard – permafrost is rapidly thawing, releasing previously-frozen organic matter into the surrounding environment. Knowing not only how, but when, dissolved organic matter (DOM) and other nutrient concentrations are changing is important for predicting effects of climate change, but the picture is currently incomplete.  A new paper from Arctic… Read more »

LTER Road Trip: Tundra roots may hold the secret to predicting a future Arctic

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By Haley Dunleavy It’s a beautiful August day in the Arctic. The sun, now finally rising and setting after months of circling the sky, warms my face; neon yellows, pinks, reds, and greens of fall foliage speckle across the tundra, and most importantly, the previously incessant mosquitos have died off. I’m standing on a single-planked… Read more »

A Silver Lining in Arctic Permafrost Thaw

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Climate change is already impacting polar habitats such as the Arctic tundra, where increasing temperatures are causing permafrost to thaw and exposing soil and organic matter that have been buried for thousands of years. Many scientists predicted that this soil, once exposed, would release a massive amount of sequestered carbon into the atmosphere, contributing to… Read more »

Fire and ice: Carbon cycling feedbacks to climate in a warming Arctic

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Arctic wildfire

Talk Description: About 30% of global carbon stocks reside in the vegetation and deep, carbon-rich soils of Arctic tundra and boreal forest biomes. Wildfires—which are becoming more frequent with warmer and drier weather in the Arctic—have the potential to either stabilize or accelerate regional and global warming through carbon feedbacks. By comparing the impact of… Read more »

“Why STEM?” Teachers find answers in summer field work

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Ask any teacher to identify their students’ favorite question. The answer is universal: “Why do I need to learn this?” The Research Experience for Teachers (RET) Program, funded through NSF and LTER, seeks to give teachers the tools to answer this question in ways that excite and engage their students.