Tag Archives: Cryptocurrency

Stablecoins: these cryptocurrencies threaten the financial system, but no one is getting to grips with them

Safe as houses? iQoncept Jean-Philippe Serbera, Sheffield Hallam University Cryptocurrencies have had an exceptional year, reaching a combined value of more than US$3 trillion (£2.2 trillion) for the first time in November. The market seems to have benefited from the public having time on their hands during pandemic lockdowns. Also, large investment funds and banks have stepped in, not least …

Read More »

Ethereum: the transformation that could see it overtake bitcoin

The crypto wars are hotting up. Wit Olszewski Daniel Broby, University of Strathclyde The world’s second most valuable cryptocurrency, ether, has been touching all-time highs in price ahead of a major upgrade of its underlying platform, ethereum. Ether is currently worth in aggregate just shy of US$500 billion (£363 billion). That’s still slightly less than half that of the biggest …

Read More »

Bitcoin alternatives could provide a green solution to energy-guzzling cryptocurrencies

24K-Production/Shutterstock Sankar Sivarajah, University of Bradford and Kamran Mahroof, University of Bradford The cryptocurrency bitcoin now uses up more electricity a year than the whole of Argentina, according to recent estimates from the University of Cambridge. That’s because the creation of a bitcoin, in a process called mining, is achieved by powerful computers that work night and day to decode …

Read More »

Bitcoin: China’s crackdown isn’t enough – only a global effort can stop crypto’s monstrous energy demand

Anucha Cheechang/Shutterstock Peter Howson, Northumbria University, Newcastle Huge concrete data centres, permanently plugged into power plants and telephone exchanges, maintain much of online life. But the infrastructure behind internet-based cryptocurrencies such as bitcoin, dogecoin and ethereum is more like a rusty travelling circus. And right now, that circus is on the road. Bitcoin relies on a network of millions of …

Read More »

Tesla’s Bitcoin about-face is a warning for cryptocurrencies that ignore climate change

Shutterstock John Hawkins, University of Canberra Over the weekend, Tesla chief executive Elon Musk suggested his company could sell off its Bitcoin holdings, sending the cryptocurrency plummeting. It followed Musk’s announcement earlier this month that his company would no longer accept Bitcoin in payment for its electric cars, due to the fossil fuels needed to create the digital currency. Bitcoin …

Read More »

Ethereum: what is it and why has the price gone parabolic?

Welcome to web 3.0. Inked Pixels Paul J Ennis, University College Dublin and Donncha Kavanagh, University College Dublin The price of the world’s second largest cryptocurrency, ether, hit a new all-time high of US$1,440 (£1,050) on January 19. This breached a previous high set three years ago and gave ether a total value (market capitalisation) of US$160 billion, although it …

Read More »

Bitcoin: the UK and US are clamping down on crypto trading – here’s why it’s not yet a big deal

Where there’s a bit there’s a writ. Novikov Aleksey

Where there’s a bit there’s a writ. Novikov Aleksey Gavin Brown, University of Liverpool The sale and promotion of derivatives of bitcoin and other cryptocurrencies to amateur investors is being banned in the UK by the financial regulator, the Financial Conduct Authority (FCA). It is a further blow to the burgeoning cryptocurrency market, coming days after the US authorities indicted …

Read More »

What is DeFi and why is it the hottest ticket in cryptocurrencies?

There has been massive growth in decentralised finance in the past three years. ESB Professional

There has been massive growth in decentralised finance in the past three years. ESB Professional Jeremy Eng-Tuck Cheah, Nottingham Trent University One area in cryptocurrencies attracting huge attention is DeFi or decentralised finance. This refers to financial services using smart contracts, which are automated enforceable agreements that don’t need intermediaries like a bank or lawyer and use online blockchain technology …

Read More »