environmental problemsOnline version match each word with its correct definition. by Valentina Gutierrez 1 Group 1 2 environmental problems Contamination Deforestation Climate change Soil degradation Overfishing Water scarcity presence in the environment of substances or elements harmful to humans and ecosystems (living beings). removal of a forest or a group of trees so that the land is thereafter converted to non-forest use. global variation of the Earth's climate due to natural causes, but mainly to human action. A degenerative process that reduces the capacity of soils to continue to perform their characteristic functions. when a species is harvested in excess, so much so that its population is not able to recover, which could lead to its extinction. point at which users' consumption affects water supply or quality, so that demand cannot be fully satisfied.