Peru has declared a 60-day state of emergency in a part of the Amazon the size of Austria. The announcement is aimed at curbing high rates of mercury poisoning from rampant illegal gold mining in the Madre de Dios region.
Until recently, the Peruvian city Cusco stank. But thanks to a more modern sewage system, the Andean metropolis is now not only easier on the climate - it's also easier on the nose. The system even creates biogas.
Oceans cover more than two-thirds of our planet and give us food, energy and other resources. But worldwide, this fantastic underwater world is in danger. Is there still time to prevent the worst?
El Salvador's Parliament has approved a law banning all metal mining projects. The measure aims to protect the impoverished Central American nation's environment - but critics fear it could hurt the economy.
Plastic pollution and overfishing may currently be in the headlines. But rising CO2 emissions are also a key threat to the ocean that covers 71 percent of the planet, and a major challenge for future life on Earth.
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