Climate impacts in northern forests
Northern forests hold around 54% of the world’s total terrestrial carbon stock and contribute more than one-third to our global terrestrial carbon sink. This report reviews the impact of human induced
N C America
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Global distribution of winter lightning: a threat to wind turbines and aircraft
<p>Lightning is one of the major threats to multimegawatt wind turbines and a concern for modern aircraft due to the use of lightweight composite materials. Both wind turbines and aircraft can initiate
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Weathering storms: understanding the impact of natural disasters on the poor in Central America
In the past decades, natural disasters have caused substantial human and economic losses in Central America, with strong adverse impacts on gross domestic product per capita, income, and poverty reduction.
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Variation in forewing size linked to migratory status in Monarch butterflies
<p>Long-distance migration can be seen throughout the animal kingdom and can have large impacts on population dynamics and species distributions. The act of migration itself also affects the evolution
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Quantitative evidence for the effects of multiple drivers on continental-scale amphibian declines
<p>Since amphibian declines were first proposed as a global phenomenon over a quarter century ago, the conservation community has made little progress in halting or reversing these trends. The early search
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What Will Become of Us? Voices from around the world on drought and El Niño
About 60 million people across Southern Africa and the Horn, Central America, and the Pacific face worsening hunger and poverty due to droughts and crop failures in 2014–15 that have been exacerbated by
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Cryptosporidium hominis is a newly recognized pathogen in the Arctic region of Nunavik, Canada: Molecular characterization of an outbreak
<p>Cryptosporidium is a leading cause of childhood diarrhea in low-resource settings, and has been repeatedly associated with impaired physical and cognitive development. In May 2013, an outbreak of diarrhea
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Arsenic species in chicken breast: Temporal variations of metabolites, elimination kinetics, and residual concentrations
<p>Chicken meat has the highest per capita consumption among all meat types in North America. The practice of feeding 3-nitro-4-hydroxyphenylarsonic acid (Roxarsone, Rox) to chickens lasted for over 60
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Long-term trends worldwide in ambient NO2 concentrations inferred from satellite observations
<p>Air pollution is associated with morbidity and premature mortality. Satellite remote sensing provides globally consistent decadal-scale observations of ambient nitrogen dioxide (NO2) pollution. The
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Productivity of North American grasslands is increased under future climate scenarios despite rising aridity
Grassland productivity is regulated by both temperature and the amount and timing of precipitation. Future climate change is therefore expected to influence grassland phenology and growth, with consequences
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Sensitivity of global terrestrial ecosystems to climate variability
The identification of properties that contribute to the persistence and resilience of ecosystems despite climate change constitutes a research priority of global relevance. Here the researchers present