The asteroid that hit the Yucatan Peninsula 65 million years ago caused both long-term climatic change and a tremendous firestorm that swept across North America  We cannot show that it was this fire that caused the extinction of the triceratops, a North American dinosaur in existence at the time of the impact of the asteroid  Nor can we show that the triceratops became extinct due to the climatic changes resulting from the asteroid' s impact
Hence, we cannot attribute the triceratops' s extinction to the asteroid' s impact
We have good reason to believe that the cause of the flooding along the coast was the unusually high tides. We also have good reason to believe that the cause of the unusually high tides was either the sun or the moon. So it is reasonable to maintain that the cause of the flooding was either the sun or the moon.