Plants

Dr. Drew Ramsey, one of the founders of “National Kale Day,” now observed annually in October, has watched the media attention to Ernie Hubbard’s findings with some amusement. To him, the whole idea of a nation eating kale in dangerous excess is absurd. Even today, after all of kale’s trendiness, “The average American eats 2…

Back in 1978, John Emsley, a British chemistry professor and science writer, summed up the case against thallium, a heavy metal that is one of chemistry’s basic elements, for The New Scientist. “If ever an element was cursed at birth, that element was thallium,” he wrote. The mystery writer Agatha Christie also knew a thing…

A California biologist found toxic levels of heavy metals in kale, got slammed for it on the internet, and then found evidence that at least one of the toxins could be even more troublesome than he had thought.

Our burly white pickup truck is rolling down the highway about 10 miles east of Oaxaca, Mexico, when the ominous dilemma that will define the future of mezcal rises into view. To my left, sitting beside me on the pickup’s bench seat, are Cuauhtémoc Lopez, a mezcal maker who is carrying on his family’s traditional…

In Brooklyn, a former nuclear engineer borrows from the Caribbean’s traditional methods of distilling rum, reviving America’s first spirit in the process.

At six o’clock on a July morning, during one of the hottest stretches in northwest Oregon’s recorded history, Ryan Neil trots out the door of his hilltop home and down a short gravel path in his nursery to check on more than a million dollars worth of small, delicate trees. Neil is a professional bonsai…

The carbon trading market is heating up again, and a lot of people who have been figuring out ways to grab carbon dioxide out of the air are back in the game. California’s John Wick may well be at the head of the pack.

Al Ruozi, age 97, is a high-school dropout whose primary invention was a machine, largely forgotten by now, that can help farmers save water, improve soil quality, and fight climate change.