Most imperative environmental concerns are Cultural eutrophication pertaining to industrialization and urbanization which lead to proliferation of weeds in aquatic environs disturbing these ecosystems. Alarming increase in CO<sub>2</sub>, CH<sub>4</sub>, CFC’s, N<sub>2</sub>O and water vapour in the atmosphere cause enhanced greenhouse effect, among all these CO<sub>2</sub> is accountable for 55-60 % of total enhanced effect. Phyto- and Nutrient sequestration via plants helps storage of atmospheric CO<sub>2</sub> in the vegetation to get rid of contaminants. Carbon and nutrient sequestration can be braided together for sustainable development goals. The chapters adopt the hierarchy as follows: significance of quality environs, quantification and bio-monitoring of culprit contaminants, the issues relevant to global warming and accelerated eutrophication and their ecological impacts followed by various sequestration technologies.<br>
