Bitcoin nears $10,000 mark as hedge funds plough in

Cryptocurrency now worth seven times an ounce of gold, with market cap higher than IBM, McDonald’s or Disney – but analysts warn of ‘a huge bubble’Bitcoin mining consumes more electricity than IrelandBitcoin has hit a record high after passing $9,000 (£6,700) and is close to reaching five figures as investors in the cryptocurrency shrug off warnings of a bubble.The cryptocurrency rose to an all-time high of $9,721 on Monday. It is now worth more than seven times an