Soil temperature drives nitric oxide emission

Nitric oxide (NO) is a major contributor to atmospheric pollution, and forest soil is an important source of NO emission. However, there are great uncertainties in global forest soil NO emission due to lack of high-frequency ...

Tree sensors track urban growth, flowering and more

Low-cost "tree fitbits" can pinpoint the precise timing of tree activities, like spring bloom or autumn leaf change, according to a new CU Boulder study. Researchers outfitted two East Boulder ash trees with high-resolution ...

New instrument to measure atmospheric ammonia

In the past decades, intensive human agricultural activities have caused a significant increase in ammonia (NH3) emissions to the atmosphere, which have led to serious environmental and public health problems.

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