In Western Europe why do most people live within 100 miles of the coast

For good soil for farming

For reasons that involve climate change

For iron ore and coal

For trade and transportation

For trade and transportation. Many of the largest cities in Western Europe were established near the coast to take advantage of access to shipping routes and trade networks. This allowed for easier transportation of goods and people, contributing to economic development and growth in these coastal regions. Additionally, proximity to the coast also provides access to maritime resources and opportunities for fishing and other industries.