Environmental protection

Poly(vinyl alcohol) (PVOH, PVA, or PVAl) is a water-soluble synthetic polymer.

Although scientists observed reduction in populations of several European amphibian species since the 1950s, awareness of the decline of amphibian populations and its classification as a modern-day global mass extinction only dates from the 1980s.

Alkaline hydrolysis (also called biocremation and/or resomation) is a process for the disposal of human remains which produces less carbon dioxide and pollutants than cremation.

Environmental assessment<section begin=overview /> (EA) is the term used for the assessment of the environmental consequences (positive and negative) of a plan, policy, program, or concrete projects prior to the decision to move forward with the proposed action.

Sea level rise has been estimated to be on average between +2.

Colony collapse disorder (CCD) is the phenomenon that occurs when the majority of worker bees in a colony disappear and leave behind a queen, plenty of food and a few nurse bees to care for the remaining immature bees and the queen.

The Rio Declaration on Environment and Development, often shortened to Rio Declaration, was a short document produced at the 1992 United Nations "Conference on Environment and Development" (UNCED), informally known as the Earth Summit.

A sustainable city, or eco-city (also "ecocity") is a city designed with consideration of environmental impact, inhabited by people dedicated to minimization of required inputs of energy, water and food, and waste output of heat, air pollution - CO2, methane, and water pollution.

The activated sludge process is a process for treating sewage and industrial wastewaters using air and a biological floc composed of bacteria and protozoa.

Pleistocene rewilding is the advocacy of the reintroduction of descendants of Pleistocene megafauna, or their close ecological equivalents.

Phytoremediation (from Ancient Greek φυτο (phyto), meaning "plant", and Latin remedium, meaning "restoring balance") refers to the technologies that use living plants to clean up soil, air, and water contaminated with hazardous chemicals.

The Southeast Rügen Biosphere Reserve (German: Biosphärenreservat Südost-Rügen) is a biosphere reserve in the German state of Mecklenburg-Vorpommern, which covers the southeastern part of the island of Rügen (including Granitz and Mönchgut), the lagoon of Rügischer Bodden between Putbus and Thiessow, the outer coast between Thiessow and Binz and the island of Vilm.