A hot, "unstable and sticky" summer awaits Quebecers, according to The Weather Network, which predicts periods of abundant heat, often followed by severe thunderstorms. This will be the "fifth consecutive summer where temperatures will be above seasonal normals, which has never happened since we started compiling data" in 1942, according to André Monette, chief meteorologist at The Weather Network. ()
Simultaneous heatwaves and droughts are becoming increasingly common in western parts of the United States, according to a new study led by researchers from 㽶Ƶ. Periods of dry and hot weather, which can make wildfires more likely, are becoming larger, more intense, and more frequent because of climate change.
A smog warning is still in effect for the Greater Montreal area Monday as high concentrations of pollutants are expected to infiltrate the air. According to Environment Canada, this could "result in poor air quality, especially in urban areas where pollutant emissions are higher." ()
McGill expert who can comment on the issue:
Scientists have been looking at pollution affecting the air, land and water around the Athabasca Oil Sands for some time. After looking at contaminants in snow taken from up-to 25 km away from the oil sands, a McGill-led scientific team now suggests that oil sand pollution is also affecting the weather patterns in the surrounding regions.
As 2016 approaches, the ongoing El Nino shows no sign of relaxing its grip on the global climate. (Source: )
John Gyakum, Department of Atmospheric and Oceanic Sciences
"The current El Nino, the strongest since 1997-98, is associated with recent unusually warm conditions in Ontario and Quebec."—John Gyakum
Professor or large scale and dynamic meteorology.
The atmosphere is so unstable that a butterfly flapping its wings can, famously, change the course of weather patterns. The celebrated “butterfly effect” also means that the reliability of weather forecasts drops sharply beyond 10 days.
Weather, which changes day-to-day due to constant fluctuations in the atmosphere, and climate, which varies over decades, are familiar. More recently, a third regime, called “macroweather,” has been used to describe the relatively stable regime between weather and climate.
While short-term weather is notoriously volatile, climate is thought to represent a kind of average weather pattern over a long period of time. This dichotomy provides the analytical framework for scientific thinking about atmospheric variability, including climate change.