Why does Stephen study whale earwax?

A psychologist with wide-ranging interests, Stephen Trumble studies everything from rats to zebrafish, but these days whale earwax is taking over his Baylor University lab. There are already 30 pieces of it lined up, each requiring about a year’s worth of analysis — and he hopes to obtain five times as many. He’s doing this because hidden in all that wax is information that could tell us how life has been changing for whales and the Arctic in the past 100 years or more.

On July 7th 1906 Joseph Chamberlain led an 80-car rally to celebrate his 70th birthday. Thousands of Brummies lined its 17-mile route. "Our Joe" had fought for Birmingham’s workers as mayor and, on the national stage, had advocated tariffs protecting its industries. The city was a palimpsest of his achievements: its schools for the poor, its magnificent parks, its grand civic buildings, its whirring workshops and clanking factories full of confident, well-fed workers.