Chemicals pumped into Earth's atmosphere decades ago still are affecting ozone levels today. This problem was a long time in the making, and because of the persistence of these chlorine compounds, there is no short-term fix. |
Chemicals pumped into Earth's atmosphere decades ago still are affecting ozone levels today. This problem was a long time in the making, and because of the persistence of these chlorine compounds, there is no short-term fix. |
Living through it did not seem so quick. |