CFC ban is shrinking hole in ozone layer, says NASA

The hole in the ozone layer has shrunk thanks to low levels of chlorine in the stratosphere – a drop brought about by the ban on CFCs, according to the latest NASA research.

Hydrofluorocarbon (HFC) gases: Almost 200 nations agree 'monumental' deal to cut greenhouse gases

In a major international step towards battling climate change, 197 nations hammered out a legally binding deal to cut back on the greenhouse gases used in refrigerators and air conditioners.