"Fourth International Conference (ICPEP-4) will be jointly organized by International Society of Environmental Botanists (ISEB) and National Botanical Research Institute (NBRI), Lucknow, India. This Conference aims to provide an international forum for serious discussions and deliberations on the burning problem of environmental pollution and the role of plants in pollution indication and remediation and such related issues as biodiversity conservation, sustainable development, climate change and effects of pollution on agriculture, food productivity, forestry and human health."