The year 536 was marked by an 18-month-long mysterious fog that caused unprecedented darkness ... What does the ice record say? Ever since tree ring studies in the 1990s suggested the summers ...

NEW DELHI: Flights were cancelled, trains ran late, and weekend road traffic was sluggish as the national capital was enveloped in a thick fog blinding it for as long as 12 hours, starting late ...

Two years after it became a key Covid symptom, more of us than ever are struggling with brain fog. Here’s how to do deal with having 100 mental tabs open at once. It was around a year ago when I ...