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.
Berlin's politicians and clubs are teaming up to make partying more sustainable. Ideas range from more efficient light and cooling systems to generating energy through dancing. And there's an even bigger goal.
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?
With polluted air and a coal-hungry economy, India is using the UN climate conference to show the world it can continue rapid development without fossil fuels. But the South Asian country still runs on dirty energy.
James Thornton, head of public interest law firm Client Earth, holds governments around the world accountable for environmental damage. He tells DW how the law can be harnessed for the good of people and the planet.
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