ocr: Subsequently, the need or establishment of envizonmental L base- Table 1: Lakes Studed(Continued lineshas receredattentionatthe 1972United. NationsConferenoe onthe HumanEnwizonmentandfollow-up ettortst to implementa Name Contine Area Depth Global Envizonmental Montoringsystem/(NAS 1976). nt Table 1: Lakes Studied Winnipeg North America 9,417 60 Name Contine Area Depth Orfario North nt America 7,550 802 Asia- Balkash Asia 7,115 85 Caspian Sea Europe 143244 3,363 Ladoga Europe 6,835 738 Superior North America 31,700 1/330 Chad Africa South 6,300 24 Maracaibo Victoria Africa 26,828 270 America 52 ...