Brown coal mining limits in North Bohemia of mining operations whole villages, towns and even cities (Most) were demolished to extract the coal that lay beneath; their inhabitants were rehoused in large-scale new prefabricated panelled apartment buildings. The low quality technology used for large-scale burning of brown coal led to a sharp increase in the content of harmful sulfur dioxide and aerosols in the atmosphere. The result was wholesale damage to the environment (such as the die-back of the forests in the Ore Mountains from acid rain) and human health. In view of the unsustainable situation, the first post-communist Czechoslovak government decided to resolve the situation by
Brown trout in Scotland, peal in the West Country, mort in North West England, and white trout in Ireland. The lacustrine morph of brown trout is most usually potamodromous, migrating from lakes into rivers or streams to spawn, although evidence indicates stocks spawn on wind-swept shorelines of lakes. "S. trutta" morpha "fario" forms stream-resident populations, typically in alpine streams, but sometimes in larger rivers. Anadromous and nonanadromous morphs coexisting in the same river appear genetically identical. What determines whether or not they migrate remains unknown. The scientific name of the brown trout is "Salmo trutta". The specific epithet "trutta" derives from the