CFCs

• China is still releasing banned ozone-killing chemicals into atmosphere: study

  The data reinforces a watchdog report from 2018 that claimed at least 18 companies in China were using the chemical to make foam insulation.

  Environment

  May 23, 2019
  
• Earth’s ozone layer is slowly healing, UN report says

  A United Nations-backed report suggests the Earth's protective ozone layer is slowly recovering, due to lower concentrations of harmful greenhouse gases.

  Environment

  Nov 5, 2018
  
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• China is leaking banned, ozone-killing chemicals: watchdog

  Chinese foam-makers appear to be the “mystery” polluters behind the use of a banned, ozone-depleting chemical, an environmental group says.

  Environment

  Jul 9, 2018
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• Someone is leaking a banned, ozone-killing chemical into the air

  A mystery polluter is producing a banned chemical that destroys the ozone layer, although scientists aren't sure where it's coming from or who is responsible.

  Environment

  May 17, 2018
• Ozone hole recovering thanks to Montreal Protocol, NASA says

  There’s concrete proof that the hole in the ozone hole is recovering, NASA scientists say.

  Environment

  Jan 7, 2018
• McKenna says amendment signed to Montreal Protocol

  The Montreal Protocol was an international agreement signed on Sept. 16, 1987.

  Politics

  Nov 20, 2017
• Four new gases found in ozone layer

  New research has found four new gases in the atmosphere that could potentially contribute to the depletion of the ozone layer -- and their source is unknown.

  Environment

  Mar 10, 2014