In 1992 the United Nations Conference on Environment and Development in Rio de Janeiro brought the ideas of sustainability and development to the forefront of global politics

commissioned master calligrapher Georg Bocskay to create a model book of calligraphy

Presented here are the large figures of animals from the collection of Frederick-Augustus

The exhibition placed at its core works from the two best-known painters from Dresden: Caspar David Friedrich (1774–1840)

a self-portrait by a young Edgar Degas

Biodeterioration of Stone in Tropical Environments: An Overview Dads & Grads 2023 In 1992 the United NationsRakesh Kumar and Anuradha V. Kumar A serious challenge for professionals involved in the conservation of cultural heritage sites in tropical environments is the biodeterioration of stone. This volume discusses the types and causes of stone biodeterioration in hot and humid climates, preventive and remedial methods, selection of chemical treatments, status of current research, and areas for further investigation. The scientific findings presented in