This series covers leading-edge research focusing on the environment, including current research data on solar energy for buildings; sustainable development and environmentally friendly energy systems in Sudan; landscape matrix fragmentation effect on virgin forest and managed forest birds; the challenges of reaching sustainable future cutting cycles; photocatalytic application of TiO2 nanotube arrays for water treatment; ecologo-geographical lower zoning of boreal forest territories; remediation technologies for phosphate removal from wastewater; plant density, plant growth retardants and cotton yield and its fiber properties; activated carbon for dyes adsorption in aqueous solution; and silver nanoparticles as a biocide for water treatment applications.