In 2007, the African Union launched the Great Green Wall project, an attempt to combat expanding desertification in the Sahel by planting a barrier of trees 10 miles wide across 4,500 miles by 2030. But the wall has so far produced disappointing results and shows the complexities of implementing a grand continent-wide scheme.
Acute water stress around the world has galvanized efforts to find new approaches and innovative solutions to access and maintain increasingly scarce water supplies. But critical questions about such trade, particularly with regard to the application of international trade law to untreated water, remain unresolved.
Why we pay so much attention to some tragedies, like this week’s earthquake in Turkey and Syria, and not others is bound up in questions of cause and effect. There is nothing political about an earthquake, we tell ourselves. There are no perpetrators, only victims. But politics always plays a role in the impact of a natural disaster.
Carbon markets are set to explode on the world stage. And while they are relatively small compared to regulatory compliance markets, voluntary markets are growing fast. Are they an effective way for companies—and the world—to achieve net zero emissions? The jury is out, with strong voices arguing for and against.
The impacts of climate change are advancing faster than experts had previously predicted, and they are increasingly irreversible. But persistent climate skepticism from key global figures, motivated in part by national economic interests, is slowing diplomatic efforts to systematically address the drivers of climate change.