Montreal Protocol

• Deal to protect ozone layer may have sparked new contamination issue

  Canadian researchers have found the chemicals used to replace the banned ones are creating issues of their own.

  Canada

  May 14, 2020
  
• 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
  
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• 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
• 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