Cutting back on harmful chemicals is definitely healing the ozone layer

Global warming is on the tip of everyone's tongue these days, and with good reason, but it wasn't long ago that the biggest environmental talking point was the depletion of Earth's ozone layer. Scientists worked hard to prove that certain chemicals, namely CFCs (chlorofluorocarbon), were rapidly eating away at our planet's protective shield, and eventually lawmakers took notice, initiating a worldwide effort to ban their use. Now, a few decades since those agreements were galvanized, scientists ...