This powder could be a key weapon in the fight against climate change. The material, known as COF-999, has the ability to trap carbon dioxide — the greenhouse gas driving global warming — far ...

Sean Hannity, pictured using his Byrna weapon. Courtesy of Byrna Technologies. Over the last 12 months, Byrna, for instance, has racked up $100 million in revenue, a record for the 20-year-old ...

Scientists and entrepreneurs like Aradóttir are embarking on ambitious—and sometimes controversial—projects to remove carbon dioxide from ambient air and lock it away.In Arizona, an ...