Assertion: saharan dust storm | /r/Causes | topsoil loss
Facets:
value: in burkina faso
type: LOCATION
value: in niger
type: LOCATION
value: in northern nigeria
type: LOCATION
value: in chad
type: LOCATION
Source sentences:
text: Saharan dust storms have increased approximately 10-fold during the half-century since the 1950s, causing topsoil loss in Niger, Chad, northern Nigeria, and Burkina Faso.
text: Saharan dust storms have increased approximately 10-fold during the half-century since the 1950s, causing topsoil loss in Niger, Chad, northern Nigeria, and Burkina Faso.