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City in The Sky: AirborneWednesday, 29th June 2016 02:45 - BBC TwoThe second episode of City in the Sky looks at how 100,000 flights stay airborne every day without colliding. Read more: City in The Sky: Airborne
All in the Mind - Summer 2016: All in the Mind Awards Ceremony from the Wellcome Collection in LondonWednesday, 29th June 2016 15:30 - BBC Radio 4
Thinking Allowed 2016: Good neighbours, The connection between sport and domestic abuseWednesday, 29th June 2016 16:00 - BBC Radio 4
Old School With The Hairy Bikers: EPISODE 1Thursday, 30th June 2016 01:05 - BBC Two (England only)
All in the Mind - Summer 2016: All in the Mind Awards Ceremony from the Wellcome Collection in LondonAvailable for over a yearClaudia Hammond presents the series that explores the limits and potential of the human mind. Read more: All in the Mind - Summer 2016: All in the Mind Awards Ceremony from the Wellcome Collection in London
Martin Conway: Flashbulb memoryProfessor Martin Conway, Professor of Cognitive Psychology at City University London talks us... Listen now: Martin Conway: Flashbulb memory
Take the photographic memory testCan you capture scenes just by looking at them? Find out with our photographic memory test. Launch now: Take the photographic memory test
Can renewable energy power the world?Renewable energy sources are gaining an increasing share of world energy supplies. In the next... Try: Can renewable energy power the world? now
Organisations and management accountingThis free course, Organisations and management accounting, examines the nature of organisations,... Try: Organisations and management accounting now
Water is arguably the most important physical resource as it is the one that is essential to human survival. Understanding the global water cycle and how we use water is essential to planning a sustainable source of water for the future. In the UK there are areas where water supplies are limited, shown by recent droughts. Globally, there are many areas that do not have enough water to support the current population adequately. Decisions will have to be made on the best way to use water in a world where there is climate change. This course, Extending water resources, examines the options.
After studying this course, you should be able to:
- discuss ways of extending sources of fresh water involving both the unused parts of the hydrological cycle, and new ways of using existing water sources.
Study this free course
Enrol to access the full course, get recognition for the skills you learn, track your progress and on completion gain a statement of participation to demonstrate your learning to others. Make your learning visible!
Extending water resources
Existing supplies of water will have to be used in different ways, or new sources will have to be found, to satisfy a greater demand for water in the future. This course looks at alternative methods of exploiting water resources by water transfer, estuary storage, and conjunctive use, and also at methods for creating new supplies of fresh water by desalination and rain-making.
This OpenLearn course provides a sample of level 2 study in
This free course includes adapted extracts from an Open University course which is no longer available to new students. If you found this interesting you could explore more free Environmental Science courses or view the range of currently available OU Environmental Science courses.
Copyright & revisions
Originally published: Wednesday, 16th March 2016
Last updated on: Wednesday, 16th March 2016
- Creative-Commons: The Open University is proud to release this free course under a Creative Commons licence. However, any third-party materials featured within it are used with permission and are not ours to give away. These materials are not subject to the Creative Commons licence. See terms and conditions. Full details can be found in the Acknowledgements and our FAQs section.
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