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 Bear, Brown Bear, What Do You See? animals. The book was one of the "Top 100 Picture Books" of all time in a 2012 poll by "School Library Journal". As of 2013, it ranked 21st on a Goodreads list of "Best Children's Books," and the publisher claimed that there were "7 million copies in print in various formats and languages." In 2010, the Texas State Board of Education briefly removed the book from the public school curriculum after confusing the author with philosopher Bill Martin, author of "Ethical Marxism: The Categorical Imperative of Liberation". Brown Bear, Brown Bear, What Do You See? Brown Bear, Brown Bear, What