Complex sentence: As both incidents occurred during foggy conditions, they later prompted the Council of Finistère to authorize the installation of fog horns, while the following decade would see calls to paint the lighthouse for increased visibility.
Split into simpler sentences: As both incidents occurred during foggy conditions, they later prompted the Council of Finistère to authorize the installation of fog horns. To further increase safety, the following decade would also see calls to paint the lighthouse for increased visibility.