A new study conducted in Canada's two largest cities has linked about 1,100 premature deaths per year to an unregulated air pollutant. Ultrafine particles (UFPs) primarily come from vehicle emissions and industrial activities. Canada's federal and provincial governments have not set concentration limits for UFPs, as they have for larger...
Scientists and climate change: Extreme concern and high level of engagement
Scientists from across academic disciplines are extremely concerned about climate change. Many of them have already changed their own lifestyles or engaged in advocacy and protest, with even more being willing to do so in future. This is evident from a large-scale survey of scientists from all over the world.
How the rising earth in Antarctica will impact future sea level rise
The rising earth beneath the Antarctic Ice Sheet will likely become a major factor in future sea level rise, a new study suggests.
Fossil shows how penguins’ wings evolved
A tiny fossil penguin plays a huge role in the evolutionary history of the bird, an international study shows.
Allergy cells’ hidden secret
Known for their role in allergic reactions, mast cells have long been recognised as key players in our immune system. When they encounter allergens, they release chemicals that trigger typical allergy symptoms such as tissue swelling and inflammation. Now, researchers have discovered a hidden talent of mast cells: they can...
Link between global warming and rising sea levels
A new study suggests that Earth's natural forces could substantially reduce Antarctica's impact on rising sea levels, but only if carbon emissions are swiftly reduced in the coming decades. By the same token, if emissions continue on the current trajectory, Antarctic ice loss could lead to more future sea level...
Climate Change May Lead to Shifts in Vital Pacific Arctic Fisheries
Commercially important marine fish and invertebrate species will likely shift northwards under a warmer climate.
Retreat of Tropical Glaciers Foreshadows Changing Climate’s Effect on Global Ice
As they are in many places around the globe, glaciers perched high in the Andes Mountains are shrinking.
Australia’s Snowy Mountains Coated in White
Winter made a bold—if late—entrance to the mountains in southeastern Australia.
Trying to limit calories? Skip the dip, researchers advise
Snacks provide, on average, about one-fourth of most people's daily calories. With nearly one in three adults in the United States overweight and more than two in five with obesity, researchers are investigating how Americans can snack smarter.