“ Most of the country’s rivers, lakes and canals are polluted by discharges of untreated industrial and domestic wastewater as well as pesticide - laden runoff from farms, ” reports The Wall Street Journal.
નૉર્વેમાં સ્ટાવાંગરમાં ૧૪ દેશોમાંથી સો જેટલા ઍક્સ્પર્ટ ભેગા થયા.