Dozens of cities, states and nations are enacting bans and restrictions on single-use plastic bags and other items. A legal expert explains how a global treaty could build on these efforts.
Private finance crashed the economy and is too consumed by the profit motive to be a reliable ally against climate change. We should not allow COP24 to be their board meeting.
What do we want … when do we want it? Now.
Etienne Laurent/EPA
With so much attention focused on what agreements come out of COP24, protesters should be seizing the initiative to attack the root causes of climate change.
Researchers release a balloon carrying instruments to measure ozone levels above Antarctica.
Kelli-Ann Bliss/NOAA
Almost 30 years ago the world responded to the realisation that our ozone layer was in trouble. The resulting Montreal Protocol was a rare example of global cooperation, but there's no room for complacency.