India:
§
population increasing by 15 million/year
§
now >1 billion people
§
huge topsoil loss
China
§
1/6 land area => serious erosion
§
Atmospheric scientists in Hawaii can tell within a
few days when the spring plough starts in N.
China.
It is estimated that
1/5 of the world’s topsoil has been lost since 1950
!!