To the south, the migration of Antarctica to the north will cause all of its ice sheets to melt.

This large migration of slaves broke up many families and caused much hardship.

The migration has caused municipality schools, especially primary schools to lose students as they leave for the United States with their parents.

More recently, migration from tribal villages to cities, where such languages are rarely heard or spoken, has caused a further decline.

Other star-faring species fear their migration will cause the Void to expand again.

Later, the migration of the key players to Western European clubs caused negative results.

These migrations into the cities often cause large numbers of unemployed people, who end up living in slums.

This intense migration caused much trouble for the city.

This 'inward migration' caused social problems and friction between these people and those with a long history of residence.

The number was even higher but migration to North America has caused an evident reduction.