Global International Water Assessment tools (GIWA)
The graphic shows the process of GIWA's assessment methodology and list the five main concerns dealing with water resources, which are freshwater shortage, pollution, habitat and community modification, unsustainable exploitation of fisheries and other living resources and global change.
28 Sep 2005 - by UNEP/GRID-Arendal
Global International Waters Assessment Tools
Global International Waters Assessment's (GIWA) assessment tools for monitoring the world's water resources, incorporating five major environmental concerns and application of the DPSIR framework (driving forces-pressure-state-impact-response), are now beginning to yield results of practical use for management decisions. This graphic explains the GIWA Assessment Methodology and GIWA's five main environmental concerns, which are: freshwater shorta...
17 May 2005 - by UNEP/GRID-Arendal
Direct measurements of greenhouse gases emissions are not possible. Assessments are therefore using precise theoretical calculations for each sectors. They are called “emission factors” and are regularly updated.
Trying to quantify emissions related to a given activity requires consideration of complete life-cycles. That means counting emissions from all related activities, raw materials, transformed products and necessary infrastructure (indi...
05 Jan 2009 - by UNEP/GRID-Arendal