Last week, U.S. wind power output slumped to the lowest in almost three years, and generators ramped up natural gas use to keep the lights on. This is not a glitch or a one-time occurrence. It is simply the reality and highlights the difference between reliability and climate ambitions. And the former will always trump the latter. July has not been a good month for wind energy in the United States. According to LSEG data cited by Reuters’ Gavin Maguire last week, the first three weeks of the month saw a 78% decline in wind power generation.…