Brussels - The European Union pledged 150,000 euros (210,000 dollars) to help Mongolia tackle severe winter weather that killed 1.7 million head of livestock and left tens of thousands of families facing food shortages, the European Commission president said Tuesday. The winter disaster, or "dzud" in Mongolian, left livestock unable to graze because of deep, frozen snow covering grassland and sent temperatures down to below minus 40 degrees celsius in some areas, according to international aid agencies.