Wind erosion, water shortages, rapid population growth and overgrazing cause around 470,000 hectares of land to degrade per year, data from the environment ministry show. Wind erosion, water shortages, rapid population growth and overgrazing cause around 470,000 hectares of land to degrade per year, data from the environment ministry show. After a terrible drought ravaged the Sahel in the 1970s and 1980s, many of Sawadogos neighbours abandoned their farms in northern Burkina Faso. But he stayed. But he stayed.
after 1970 there were no predicts a sustained loss of resources for land erosion.
( z0 predict :ARG1 ( z1 lose :purpose ( z2 erode :ARG1 ( z3 land ) ) :ARG1 ( z4 resource ) :ARG1-of ( z5 sustain ) ) :polarity - :time ( z6 after :op ( z7 date-entity :year 1970 ) ) )
(z0 / predict-01
    :ARG1 (z1 / lose-02
              :purpose (z2 / erode-01
                           :ARG1 (z3 / land))
              :ARG1 (z4 / resource)
              :ARG1-of (z5 / sustain-01))
    :polarity -
    :time (z6 / after
              :op1 (z7 / date-entity
                       :year 1970)))
after 1970 there were no predicts a sustained loss of resources for land erosion .
z6 :op1 z7
z7 :year 1
z0 :polarity 0
z0 :time z6
z1 :ARG1-of z5
z0 :ARG1 z1
z1 :ARG1 z4
z2 :ARG1 z3
z1 :purpose z2