Today, one big tree chopped down affects movement of air and rainfall patterns within a radius of 20km. Bush encroachment is competing with grass. Haphazard sand mining, stream-bank cultivation and destruction of the sensitive wetlands have led to siltation of rivers and dams at an alarming rate.
The desert phenomenon of wind carrying dust, sand particles and litter as in the Sahara is not uncommon. As for government, no-one is listening. For local authorities, it is an overwhelming task – M. Muda, Harare


