Gas prices are so high due to the worldwide squeeze on gas and energy supplies. A cold winter in Europe last year put pressure on supplies and, as a result, stored gas levels are much lower than normal. There's been increased demand from Asia (which also suffered a cold winter) for liquefied natural gas, which has helped push up gas prices up there, and in the UK and Europe too. Since January 2021, they've risen 250% and prices have soared 70% from August alone.