Germany hasn’t actually been doing well at all in Co2 reduction for a good number of years. I admire Merkel as she is one of the sane major world leaders right now, but she’s had to make concessions.
I’m not necessarily alone in saying this, - as Pope Emeritus Benedict XVI has spoken on the subject of the Church in his native country - that the Church probably shouldn’t expect to uphold all of its former glory on the European continent. Unfortunately, restoration on very old buildings (150+) can be prohibitively expensive, especially with steeples and bell towers. Depending on the scope, a single steeple restoration is going to be in the six digits.
The German Catholic Church, in particular, might be able to afford it due to some rather controversial tax laws, but the same can’t be said in any of the other Big 5 in Europe as far as I am aware.