—Daniele Visioni is a climate scientist and assistant professor at Cornell University

The public debate over whether we should consider intentionally altering the climate system is heating up, as the dangers of climate instability rise and more groups look to study technologies that could cool the planet.

Such interventions, commonly known as solar geoengineering, may include releasing sulfur dioxide in the stratosphere to cast away more sunlight, or spraying salt particles along coastlines to create denser, more reflective marine clouds.  

The growing interest in studying the potential of these tools has triggered corresponding calls to shut down the research field, or at least to restrict it more tightly. But such rules would hinder scientific exploration of technologies that could save lives and ease suffering as global warming accelerates—and they might also be far harder to define and implement than their proponents appreciate. Read the full story.

This architect is cutting up materials to make them stronger and lighter

As a child, Emily Baker loved to make paper versions of things. It was a habit that stuck. Years later, studying architecture in graduate school, she was playing around with some paper and scissors when she made a striking discovery.

By making a series of cuts and folds in a sheet of paper, Baker found she could produce two planes connected by a complex set of thin strips. Without the need for an adhesive, this pattern created a surface that was thick but lightweight. Baker named her creation Spin-Valence.