Loading...

Sustainability of groundwater in a changing world

1,514 views

Loading...

Loading...

Transcript

The interactive transcript could not be loaded.

Loading...

Loading...

Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Jul 2, 2012

June's Shell London Lecture, delivered by Professor Paul L Younger at the Geological Society on 27 June 2012.

Groundwater constitutes the overwhelming majority of the freshwater resources available for humankind to use, and yet because it is largely invisible it remains relatively ignored and misunderstood by policy makers. Virtually ubiquitous, groundwater is in many ways a more useful resource than surface water, though natural variations in geology and climate mean that careful planning is necessary if it is to be used sustainably. Connectivity is a keyword in considering the sustainability of groundwater exploitation: connectivity with the atmosphere (just how much of the groundwater we use is "fossil" recharge?); connectivity within and between aquifers; connectivity with surface waters, often transcending surface catchment boundaries; and conceptual connectivity between groundwater use and the consumption of energy and materials. While alarming tales of groundwater over-use are not difficult to find, the extraordinary resilience of many aquifer systems also gives great grounds for hope in many parts of the world. But we do need to begin to make sure those policymakers finally get to grips with the intriguing "connectivities" of groundwater.

Loading...

When autoplay is enabled, a suggested video will automatically play next.

Up next


to add this to Watch Later

Add to

Loading playlists...