Erland Mårald, environmental historian at Umeå University, has received this year's Clios Prize for his research on Swedish environmental history. The Clios Prize is awarded annually to an outstanding younger historian. In his thesis "The global cycle: farming, the town and chemical science, 1840-1910" (2000) he highlights the transformation of farming from a natural cycle into a market oriented industry. In "Swedish environmental crimes and environmental scandals, 1960-2000" (2007), Mårald gives, in an accessible and precise style, a historical perspective on the treatment of environmental problems in recent decades.