Earth's protective ozone layer seen as 'on track to long-term recovery'
The U.N. chief calls on all nations to adopt a newer measure for phasing out powerful climate-warming chemicals.
Montreal Protocol on Substances that Deplete the Ozone Layer 1989
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Study shows efforts to restore Earth's depleted ozone layer are 'on track'
The ozone layer is expected to recover to 1980 values by around 2066 over the Antarctic and by 2045 over the Arctic.
Share of parties to global environmental treaties
Share of parties to international multilateral environmental agreements on hazardous waste and other chemicals that meet their reporting commitments.
Leaders from Canada, Mexico and U.S. send 'NAFTA 2.0' to lawmakers
The trade deal fulfills U.S. President Donald Trump's pledge to replace the 1994 North American Free Trade Agreement.
Scientists find Earth's ozone hole is on the mend due to treaty efforts
A new scientific assessment shows damage to the ozone layer from aerosol sprays and coolants started recovering in parts of the stratosphere with bans on ozone-depleting substances.
'Low profile' multilateralism: North Korea's hidden avenues to the world
A summit with the U.S. could expand North Korea's little-known involvement with international organizations.