This book provides readers with the latest developments in environmental research. Topics covered include the results of various approaches that have been applied to assess the susceptibility of the Greek coasts to long term sea-level rise; water quality vulnerability in Yucatn, Mexico at the end of the International Decade for Action Water for Life; toxic and potentially toxic diatom blooms in Tunisian waters; acidic waste rock and tailing remediation in Australia; polycyclic aromatic hydrocarbons associated with the massive mortalities of pearl oysters at the Al-Khiran coast in Kuwait; the employment of the microalgae Chlorella vulgaris as a biosorbent for the extraction of chromium and mercury species from aqueous solutions; the utility of chloroplast petB&D and trnK intron in DNA barcoding of plant species; the future of Zimbabwes small farm peasant sector in relation to changing climatic conditions and recurrent harvest deficits, and the lack of development in small water bodies (SWBs) and irrigation systems to assist farmers to cope with changing precipitation patterns and droughts; and migration caused by climate change in the Shyamnagar region of Bangladesh.