Penulis: Karl Puopolo

Human activities are changing habitats, the chemistry of the Earth’s atmosphere and water, rate and balance of biogeochemical processes and diversity of life on the earth. This book examines the effe …

The United States is facing fundamental budgetary challenges. Federal debt held by the public exceeds 70 percent of the nation’s annual output or GDP, a percentage not seen since 1950, and a continua …