For a currency that only exists in the virtual world, bitcoin could be surprisingly damaging to our real world. DW asked bitcoin expert David Malone to unpick claims that the cryptocurrency is consuming as much energy as a small country.
The Fridays for Future youth movement has piled on the pressure; in Germany, politicians are debating a carbon tax. DW spoke with Environment Minister Svenja Schulze about whether climate protection efforts are enough.
Artificial intelligence conjures fears of job loss and privacy concerns — not to mention sci-fi dystopias. But machine learning can also help us save energy and make renewables better.
A dubious distinction: top 10 cities with largest carbon footprint. Asia, the United States and the Middle East host the highest emitters — can you guess which world cities are worst for the climate?
Few people use bitcoin to buy anything — but everyone pays for its environmental impact. Does mining the cryptocurrency actually consume more electricity than Ireland?
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