Filthy art
Exhibition>> Dirt • The UK
Spreading its wings
Fine for a firm
Under sea threat
Bhutan
CAMBODIA
A clogged river
New strategy adopted
SAN JOSE
Litter-free park
Madurai clean-up
Cautious waste disposal
SOUTH AFRICA
Hazardous decision
Polluted lake
VENEZUELA
On shaky ground
Sweeping reforms
Clearing the trash
In a mess
Polluted Yangtze