Thus, nitrogen undergoes many different transformations in the ecosystem ... have been exerting an ever-increasing impact on the global nitrogen cycle. Human activities, such as making fertilizers ...

In the Mediterranean, the growth of tourist resorts and demand for water puts the natural ecosystem under pressure ... For example, human waste (such as household and industrial waste) enters ...

The findings of the study are unequivocal and leave no doubt as to the devastating impact that humans are having on biodiversity worldwide. "We analyzed the effects of the five main human impacts ...

Whether an ecosystem is the ... was having a negative impact on the penguins and their nesting habits until regulations were brought in. There is evidence that human activity is affecting climate ...