Europe is depleting its natural gas reserves at the fastest rate in six years as still winter weather and low temperatures combine to challenge the continent’s transition away from hydrocarbons—and delay it. Since the start of official winter season—October 1—gas in storage levels in the EU and the UK have declined by 83 terawatt-hours, energy analyst John Kemp reported last month. This is the fastest rate of withdrawals since 2016, he said, adding that the rate of withdrawals was over four times faster than the average…