Land life spared in Permian extinction, geologists argue

Science News, November 2015

The greatest extinction in Earth’s history might not have been so great after all. A suspected colossal die-off of roughly 75 percent of land species didn’t accompany the Permian extinction around 252 million years ago, a team of geologists contend.

New fascination with Earth’s ‘Boring Billion’

Science News, October 2015

Earth’s long history starts with an epic preamble: A collision with a Mars-sized space rock rips into the young planet and jettisons debris that forms the moon. Over the next few billion years, plot twists abound. The oceans form. Life appears. Solar-powered microbes breathe oxygen into the air. Colossal environmental shifts reshape the planet’s surface and drive the evolution of early life.

A feature article on Earth's so-called boring billion, a seemingly uneventful time in the planet's history that's now the setting of a fierce debate between scientists over what delayed the rise of animals: evolution or the environment.

Wi-Fi threatens weather forecasts

Science News, October 2015

Wireless technology dangerously clutters the airwaves that meteorologists rely on to monitor thunderstorms, hurricanes and tornadoes, blacking out large swaths of weather radar maps.