These types of columns are typically anchored constructions, made from vertical lattice girders, with specific sections. The loads are given also by the electrical lines (the electrical engineer domain) and by the temperature, the weather or gravitas loads (the civil engineer domain).
The climate changing by meteorological extreme conditions on global level can have a negative influence on column behaviour. The cyclic loading and the vibrations induced by the wind can degrade some of the diagonals, usually very slender elements, and in time cracks may appear.
So, is a matter of safety to verify and maybe redesign some component elements . The collapse of the columns in actual changing climate conditions can be eliminated by developing methods of structural upgrading, which has to be efficient from the implementation technology point of view, as well as costs.