Frostbite: How Refrigeration Changed Our Food, Our Planet, and Ourselves by Nicola Twilley

Quick. Name some inventions from the 20th century that changed our everyday lives. Cell phones, check. Airplanes, computers, cars, television, all worthy of mention. But if you did not think of refrigeration, and even if you did, this riveting account of how we manufactured cold is popular history at its best. Only after World War I did home refrigerators become available, and in General Electric’s case the company made them primarily as a way to sell more electricity. Industrial refrigeration revolutionized how and what kind of food made it into those fridges; for example, growers could now ship other kinds of lettuce rather than just iceberg, the variety that was best able to survive non-refrigerated trucking. Today, nearly two-thirds of all fruits and vegetables grown in the world are eaten in a country other than the one in which they were produced.

Nicola Twilley is at her most entertaining profiling the obsessives who, through trial and error, made it possible for New Zealand kiwifruit to “spend up to seven weeks wending its way around the Indian Ocean and through the Suez Canal and the Strait of Gibraltar” before ending up in a London fruit salad. Not everyone embraced refrigeration in its early days, and Twilley makes the persuasive argument that its effects on the kind of food we eat and on the environment will make you think twice about eating a fresh peach out of season.

The Letters of Seamus Heaney Selected and edited by Christopher Reid

Poets tend not to attract great fame, but Seamus Heaney, who died in 2013, proved to be not just Ireland’s finest poet since Yeats but also a charismatic, almost electrifying presence on the world stage, especially after winning the Nobel Prize for Literature in 1995. No matter what he wrote, he never strayed far from his roots, growing up on a thatched farmstead in County Derry and among the sectarian violence of Northern Ireland. He was, luckily for us, a tireless letter writer, and Christopher Reid has done a remarkable job editing and annotating his letters from 1964 until his death. They are both a joy and a revelation to read, no matter where you start, since Heaney writes about his poetry and everyday life with wisdom and humor. His very last missive is a two-word message texted to his wife, Marie, as he was being wheeled into the operating room for a ruptured arterial blood vessel: “Noli timere.” (Don’t be afraid.)

Jim Kelly is the Books Editor at AIR MAIL