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But some analysts note that the economic incentive for low-cost energy leads many to opt for renewables. Clean or dirty, Ireland or northern Nigeria — regardless of the difficulty in tracking down exact figures, many fear the order of magnitude is troubling enough.
Even though bitcoin is only eight years old, it already accounts for somewhere between 0. For a service used by just 3 million people, bitcoin is vastly less efficient than the current global banking system.
We'd only be arguing whether it's 10, or 20, times worse than Visa. In his film " - A Space Odyssey," Stanley Kubrick showed what can happen when computers and people are capable of communicating with each other. The computer HAL pictured center turns into an assassin when its owners consider shutting it down.
Modern computer assistants like Siri or Cortana are more friendly to humans - at least so far. When Apple presented its first iPad in , Trekkies weren't particularly amazed. After all, they had already became familiar with similar devices in their favorite series "Star Trek" 30 years before. Captain Picard and his crew made frequent use of so-called PADDs for gathering information and writing reports. Another invention of the Star Trek universe was the Communicator, which enabled Captain Kirk's crew to contact the spaceship from a distant planet.
In George Orwell's famous dystopian novel "," Big Brother watched over society with the help of "telescreens," which were basically televisions with built-in cameras. As Wikileaks recently revealed, the CIA does use cameras and microphones built into smart TVs for surveillance purposes. The US television animation series "The Jetsons," which kicked off in , was set a hundred years in the future. It featured the very first "automatic vacuum cleaner," a cute little robot eager to clean the floor.
Gadgets that are able to vacuum the entire house on their own have been available in specialized stores since the late s. It was able to speak and drive autonomously. What was still unfathomable back then may become a reality sooner than we think. Various companies are currently developing fully self-driving cars.
Another day, another thousand dollar increase for Bitcoin. The cryptocurrency has dominated financial conversations over the past few months but its latest jump is perhaps its most striking yet. Cryptocurrencies have grabbed a lot of attention in recent days as the value of bitcoin skyrocketed to hit record highs and Venezuela announced plans to create a digital currency called "petro.
The Venezuelan president has announced plans to create a cryptocurrency backed by oil, gas, gold and diamond reserves. He said the "petro" will help combat the US' "blockade" against the oil-rich country. Filmmakers and authors are the true inventors of modern technology, it seems. Just a few decades ago, many everyday objects that we take for granted now existed only in the imaginary realm of science fiction. Over the years, DW has reported on creative and sustainable ways of generating renewable energy.
Now we've compiled the top concepts - which represent a boost of hope toward a more sustainable world. Blockchain can trace everything from green supply chains to emissions cuts, enable green energy trading and convert plastic waste into cash.
A host of initiatives and start-ups are getting in on the technology. The technology that made bitcoin possible could solve key challenges of a renewables-based energy system. The race is on to radically change how to we consume and generate power. 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.
Extreme weather events linked to climate change can cause major damage — destroying homes and livelihoods. Caribbean islanders have seen some of the worst effects. Could climate insurance help? On this week's eco africa, we meet Nigerians striving for sustainability, German farmers using ancient techniques, and Ugandan school children getting green-fingered with urban farming projects at school.
Do action movies at the theater make your head spin? Not a problem for the peacock mantis shrimp. And that's just for starters. On this week's eco africa, we meet a group rebuilding a national park in Mozambique, visit a vertical farm in Germany and see how Cameroon's biogas man is helping rural cookers save their environment. Hayfever sufferers always know when pollen season starts.
Here's a look at this diverse, remarkable process of nature. On eco africa this week, solar power for Somaliland, oyster harvesting in Gambia and caring for animals in Egypt.
Change it here DW. COM has chosen English as your language setting. COM in 30 languages. News Far-right protest for release of 'Nazi Grandma' Middle East Iran and Israel's Syrian shadow war laid bare Business Japan economy shrinks for first time in 2 years It featured the very first "automatic vacuum cleaner," a cute little robot eager to clean the floor.
Gadgets that are able to vacuum the entire house on their own have been available in specialized stores since the late s. It was able to speak and drive autonomously. What was still unfathomable back then may become a reality sooner than we think.
Various companies are currently developing fully self-driving cars. Another day, another thousand dollar increase for Bitcoin. The cryptocurrency has dominated financial conversations over the past few months but its latest jump is perhaps its most striking yet. Cryptocurrencies have grabbed a lot of attention in recent days as the value of bitcoin skyrocketed to hit record highs and Venezuela announced plans to create a digital currency called "petro.
The Venezuelan president has announced plans to create a cryptocurrency backed by oil, gas, gold and diamond reserves. He said the "petro" will help combat the US' "blockade" against the oil-rich country. Filmmakers and authors are the true inventors of modern technology, it seems. Just a few decades ago, many everyday objects that we take for granted now existed only in the imaginary realm of science fiction. Over the years, DW has reported on creative and sustainable ways of generating renewable energy.
Now we've compiled the top concepts - which represent a boost of hope toward a more sustainable world. Blockchain can trace everything from green supply chains to emissions cuts, enable green energy trading and convert plastic waste into cash. A host of initiatives and start-ups are getting in on the technology. The technology that made bitcoin possible could solve key challenges of a renewables-based energy system. The race is on to radically change how to we consume and generate power.
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. Do action movies at the theater make your head spin?
Not a problem for the peacock mantis shrimp. And that's just for starters. On this week's eco africa, we meet a group rebuilding a national park in Mozambique, visit a vertical farm in Germany and see how Cameroon's biogas man is helping rural cookers save their environment. Starting to feel your nose twitch? Hayfever sufferers will notice quicker than most when pollen season starts, but that doesn't mean everyone else shouldn't learn a thing or two about this remarkable process of nature.
Western Uganda's Mpanga River is the lifeline for local communities and ecosystems in the region. But like many rivers around the world, it faces multiple threats. Locals are joining forces to protect it.
On eco africa this week, solar power for Somaliland, oyster harvesting in Gambia and caring for animals in Egypt.
Change it here DW. COM has chosen English as your language setting. COM in 30 languages. Germany Germany reaffirms Iran nuclear deal but business worries abound What to expect from the Russian president's next term Business German cabinet paves way for class-action lawsuits Bitcoin mines consist of hundreds or thousands of humming computers stacked on shelves.
Share What is a blockchain? What is a blockchain? Coal still makes up about two-thirds percent of China's energy mix. Bitcoin, cryptocurrencies — how do they work? Venezuela's Nicolas Maduro announces 'petro' cryptocurrency pegged to oil and gold The Venezuelan president has announced plans to create a cryptocurrency backed by oil, gas, gold and diamond reserves. Marc Bevand critique of Digiconomist methodology.
Digiconomist Bitcoin Energy Consumption Index. Global Cryptocurrency Benchmarking Study. Bitcoin's popularity on the rise. Send us your feedback. Print Print this page Permalink http: Welcome to the latest edition of eco africa On this week's eco africa, we meet a group rebuilding a national park in Mozambique, visit a vertical farm in Germany and see how Cameroon's biogas man is helping rural cookers save their environment.
Pollen calling Starting to feel your nose twitch? Saving Uganda's lifeline with trees and microloans Western Uganda's Mpanga River is the lifeline for local communities and ecosystems in the region. Science and technology Hawaii Kilauea volcano: