The Space-Age Disco Ball For Combating Climate Change : Greentech Media

The Space-Age Disco Ball For Combating Climate Change : Greentech Media: "Three mirrors can make a 20-kilometer beam of light used for measuring carbon dioxide. Smoke and mirrors: that is one way to think about the Picarro Wavelength-Scanned Cavity Ring Down Spectroscopy instrument. The $50,000 machine employs lasers and a specially designed chamber that contains three calibrated mirrors that Picarro claims can measure greenhouse gases like carbon dioxide and methane with far more accuracy and geographic specificity than conventional detectors."