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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What North America’s skeleton crew of megafauna tells us about community disassembly
<p>Functional trait diversity is increasingly used to model future changes in community structure despite a poor understanding of community disassembly's effects on functional diversity. By tracking
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Global progress and backsliding on gasoline taxes and subsidies
To reduce greenhouse gas emissions in the coming decades, many governments will have to reform their energy policies. These policies are difficult to measure with any precision. As a result, it is unclear
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What’s killing the world’s shorebirds?
<p>Researchers brave polar bears, mosquitoes and gull attacks in the Canadian Arctic to investigate an alarming die off.</p> <p><strong><a href="http://www.nature.com/news/what-s-killing-the-world-s-shorebirds-1.21232"
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Climate change damages to Alaska public infrastructure and the economics of proactive adaptation
<p>Climate change in Alaska is causing widespread environmental change that is damaging critical infrastructure. As climate change continues, infrastructure may become more vulnerable to damage, increasing
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Wildfires and geochemical change in a subalpine forest over the past six millennia
<p>The frequency of large wildfires in western North America has been increasing in recent decades, yet the geochemical impacts of these events are poorly understood. The multidecadal timescales of both
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A time transect of exomes from a Native American population before and after European contact
<p>A major factor for the population decline of Native Americans after European contact has been attributed to infectious disease susceptibility. To investigate whether a pre-existing genetic component
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HIV’s patient zero exonerated
A study clarifies when HIV entered the United States and dispels the myth that one man instigated the AIDS epidemic in North America.
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1970s and ‘Patient 0’ HIV-1 genomes illuminate early HIV/AIDS history in North America
<p>The emergence of HIV-1 group M subtype B in North American men who have sex with men was a key turning point in the HIV/AIDS pandemic. Phylogenetic studies have suggested cryptic subtype B circulation
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Climatic warming destabilizes forest ant communities
<p>How will ecological communities change in response to climate warming? Direct effects of temperature and indirect cascading effects of species interactions are already altering the structure of local
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The Circumglobal North American wave pattern and its relation to cold events in eastern North America
<p>Extreme large-scale North American cold events are associated with strong undulations in the tropospheric jet stream which bring cold polar air southward over the continent. Here we propose that these