How did Wegener's background as a climatologist contribute to his hypothesis that the continents were once joined?

Wegener's background as a climatologist helped him notice similarities in rock formations, fossils, and geological structures between continents separated by vast oceans. He realized that these similarities could not be explained by existing theories about seafloor spreading or continental drift. This led him to propose the groundbreaking theory of continental drift, suggesting that the continents were once connected and have since moved apart.