Taking into consideration that formulating what the nature of things must be - ethics - is a Philosophy task, this work looks for interdisciplinary keys to establish the environmental must-be. To do this, it analyzes some problems which affect the environment as a "natural" and human space. Where can we find the economy, science and politics key? Although the reflection has an ethical origin and seeks political responses, it will address all the concept of sustainability.
Ethics; Politics; Environment; Sustainable development; Economy