Why are allergies so bad right now? Pollen seasons are longer and more intense. Here's what's behind it and what actually works for relief.

Seasonal allergies are getting worse in Canada, with longer and stronger pollen seasons, largely thanks to climate change. Here's a primer on the hardest-hit cities, the latest science and what ...

'You cannot escape allergies if you live in Canada; it's impossible,' said Daniel Coates, director at Aerobiology Research Laboratories.