Travertine is a form of limestone composed of the minerals calcite and aragonite, which are both made of calcium carbonate (CaCO3). In contrast to limestones that are formed in the ocean from the ...

Disruptions of natural flow impair rivers and streams worldwide. Those conducting restoration efforts have rarely explored how and when stream ecosystems can recover after reinstating natural flows.

XII.53 The Bureau noted that a report on the state of conservation of the site was provided by the State Party on 30 January 2002 and was reviewed by IUCN and ICOMOS. The Bureau also noted that since ...