00399nam a22001097a 4500008004100000100001700041245002200058260002000080300004000100520012900140773002000269230703b           ||||| |||| 00| 0 eng d  aChawII, Lian  aOld as the hills   aDown to Earth    a32(1), May 16-31, 2023: p.24-25      aShifting agriculture on the hillsides has been blamed for degrading the ecology. How valid is the criticism? – Reproduced   aDown to Earth