We are pleased and happy to meet with many scientists who contributed to the scientific field and literature in this book. We would like to thank our valuable authors who have valuable studies in the book. Over years, important advances have been achieved in the world to improve life quality and welfare of human. In recent years, there have been significant developments that hinder sustainable life and agriculture. In this regard, scientists and authors who writes chapters have valuable efforts on the issues. Humanity must do its best to protect the ecosystem from greater dangers. Small changes in the climate, can severely affect the life cycles of living organism and also this situation effects all productivity in scientific era. The main purpose of this book is not only talk about current issues in science but also suggest for solving problems for natural resources, nanotechnologies and life sciences which driven mainly by population growth, changing dietary patterns, industrial developments, urbanization, climate changes, chemical disaster.