Spring is coming sooner to some plant species in the low Arctic of Greenland, while other species are delaying their emergence amid warming winters. The changes are associated with diminishing sea ice cover, according to a study published in the journalBiology Letters and led by the University of California, Davis.
The timing of seasonal events, such as first spring growth, flower bud formation and blooming, make up a plant’s phenology — the window of time it has to grow, produce offspring and express its life history. Think of it as “nature’s clock.”
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Cats, you might have heard, cause schizophrenia. Or—more recently—they do nothing of the sort. It’s a decades-long scientific investigation, infrequently punctuated by headline-grabbing stories that definitively claim one or the other, depending on whatever the newest sliver of research indicates.
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A Washington State University study of the chemistry of technetium-99 has improved understanding of the challenging nuclear waste and could lead to better cleanup methods.
The work is reported in the journal Inorganic Chemistry. It was led by John McCloy, associate professor in the School of Mechanical and Materials Engineering, and chemistry graduate student Jamie Weaver. Researchers from Pacific Northwest National Laboratory (PNNL), the Office of River Protection and Lawrence Berkeley National Laboratory collaborated.
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Forests around the world are at risk of death due to widespread drought, University of Stirling researchers have found. An analysis, published in the journal Ecology Letters, suggests that forests are at risk globally from the increased frequency and severity of droughts.
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