Monday, September 24, 2018
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Tag: North America

snow

How Much Snow Accumulates in North America Each Year? More Than...

There’s a lot more snow piling up in the mountains of North America than anyone knew, according to a first-of-its-kind study. Scientists have revised an...
Winter road salt

Winter Road Salt, Fertilizers Turning North American Waterways Increasingly Saltier

Across North America, streams and rivers are becoming saltier, thanks to road deicers, fertilizers and other salty compounds that humans indirectly release into waterways....
air pollution

Scientists Discover Unexpected Side Effect to Cleaning Up Urban Air

An imbalance between the trends in two common air pollutants is unexpectedly triggering the creation of a class of airborne organic compounds not usually...
greenhouse gas

Researchers Pin down One Source of a Potent Greenhouse Gas

A study of a Lake Erie wetland suggests that scientists have vastly underestimated the number of places methane-producing microbes can survive—and, as a result,...
pigeon

Passenger Pigeon Genome Shows Effects of Natural Selection in a Huge...

The passenger pigeon is famous for the enormous size of its historical population in North America (estimated at 3 to 5 billion) and for its...
corn plants

Breeding Highly Productive Corn Has Reduced Its Ability to Adapt

Stuck where they are, plants have to adapt to their environments, responding to stresses like drought or pests by changing how they grow. On a...
fluctuating temperatures

Adjusting to Fluctuating Temperatures

The duration of the vegetation period – i.e. the time that elapses between leafing out (the emergence of the first leaf) in spring and...
aggression

Teenage Aggression Linked to Neglect

Nearly half of all teenagers investigated for neglect by Ontario’s child welfare agencies and exhibiting signs of aggression experience a separation from their family....
Lyme disease

Ancient History of Lyme Disease in North America Revealed with Bacterial...

A team of researchers led by the Yale School of Public Health has found that the Lyme disease bacterium is ancient in North America,...
seagulls

Trash-picking Seagulls Poop Hundreds of Tons of Nutrients

At least 1.4 million seagulls feed at landfills across North America, which aside from the nuisance it might pose, is also a threat to...
jet engines

Rolls-Royce, Purdue, State of Indiana Announce New Initiative to Develop Next-generation...

Rolls-Royce, Purdue University and the state of Indiana on Monday (June 19) announced a new $24 million jointly funded program during the International Paris...
athletes

Study: Many Athletes with Implantable Defibrillators Can Do Sports

Some young adults have inherited heart conditions that require them to receive an implantable cardioverter defibrillator, or ICD. For years, they were told they...
climate change

UCONN Study: Migratory Birds Arriving Late to Breeding Grounds

New research shows climate change is altering the delicate seasonal clock that North American migratory songbirds rely on to successfully mate and raise healthy...
global warming

Varied Increases in Extreme Rainfall with Global Warming

A new study by researchers from MIT and the Swiss Federal Institute of Technology in Zurich shows that the most extreme rain events in...
agricultural practices

Scientists Scan Horizon for Future Invasive Species Challenges

Shipping and mining in the Arctic. The spread of invasive microbial pathogens around the world. Changing agricultural practices. Use of genomic-modification tools. Those are...
air pollution

New Software Significantly Restricts Air Pollution from Ships

The rules on emission of NOx from ships have been tightened in recent years. Since 2016, there has been a requirement in North America...
Psychiatric Disorders

Researchers Propose New Diagnostic Model for Psychiatric Disorders

A consortium of 50 psychologists and psychiatrists from around the world has outlined a new diagnostic model for mental illness, in what researchers hope...
Alzheimer’s

The Roots of Alzheimer’s Disease Can Extend as Far Back as...

Biochemical reactions that cause Alzheimer’s disease could begin in the womb or just after birth if the fetus or newborn does not get enough...
Rhagoletis flies

Researchers Publish Hypothesis to Explain Speciation in Rhagoletis Flies

Research led by fifth-year graduate student Cheyenne Tait in the Biological Sciences laboratory of Jeffrey L. Feder at Notre Dame has identified structures on...
Zooplankton

Zooplankton Rapidly Evolve Tolerance to Road Salt

A common species of zooplankton—the smallest animals in the freshwater food web—can evolve genetic tolerance to moderate levels of road salt in as little...