As Canadians brace for “vitamin D winter” – months when the sun’s angle is too low to produce the vitamin in the skin – a McGill University study explains why vitamin D deficiency early in life is associated with a higher risk of autoimmune diseases.

Capturing and storing the carbon dioxide humans produce is key to lowering atmospheric greenhouse gases and slowing global warming, but today’s carbon capture technologies work well only for concentrated sources of carbon, such as power plant exhaust.

Changing precipitation patterns in the Neotropics, one of Earth’s most biodiverse regions, could threaten two-thirds of the area’s bird species by the year 2100 if climate change goes unchecked, according to new research led by the University of Illinois Urbana-Champaign and George Mason University.

Polar bears in some parts of the high Arctic are developing ice buildup and related injuries to their feet, apparently due to changing sea ice conditions in a warming Arctic.

A firm understanding of the photovoltaic effect, by which light can be converted into useful electrical energy, lies at the core of solar cell design and development.

New Stanford-led research unveils a hidden factor that could change our understanding of how oceans mitigate climate change.

Researchers in the Stanford Radio Glaciology lab use radio waves to understand rapidly changing ice sheets and their contributions to global sea-level rise.

About a month after a powerful atmospheric river brought abundant rain to coastal British Columbia, another storm drenched southern parts of the Canadian province and western Washington in the U.S.

More than 800,000 km2 of the Arctic were affected by human activity in 2013, according to an analysis of satellite-derived data on artificial light at night. 

The El Niño event, a huge blob of warm ocean water in the tropical Pacific Ocean that can change rainfall patterns around the globe, isn't just a modern phenomenon.