"Some 10 million species of plants, animals, and microbes are thought to inhabit the earth, but so far only about 1.5 million of these have been identified. A mere 15 of the approximately 250,000 known plant species provide the world's human population with about 90 percent of its food.1 These...

Die auf Initiative Willy Brandts 1986 gegründete Stiftung Entwicklung und Frieden (SEF) legt hiermit die 2. Ausgabe ihrer Daten- und Faktensammlung zum Weltgeschehen vor. Gestützt auf internationale Studien und Berichte werden die globalen Problemfelder: Weltgesellschaft, -frieden,...

'For at least two decades, scholars and practitioners have argued that international beneficiaries of ecosystem conservation should help pay for the supply of services from which they benefit. Yet these arguments have remained inchoate and have had little real impact on the ground. Bishop and...

Successful public conservation policies at various governmental levels have increased some populations of protected species to the extent that they are causing damage to human activities. As a reaction public authorities are developing biodiversity reconciliation policies. Finland and Germany...

An assessment of the consequences of biological invasions and of the measures taken against must be at the base of each social decision in this field. Three forms of uncertainty can be distinguished that make such a decision difficult to take: (1) factual uncertainty, which encompasses not only...