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<article language="en">
	<journal>
		<journal_title>Hydrology and Earth System Sciences</journal_title>
		<journal_url>www.hydrol-earth-syst-sci.net</journal_url>
		<issn>1027-5606</issn>
		<eissn>1607-7938</eissn>
		<volume_number>13</volume_number>
		<issue_number>2</issue_number>
		<publication_year>2009</publication_year>
	</journal>
	<doi>10.5194/hess-13-247-2009</doi>
	<article_url>http://www.hydrol-earth-syst-sci.net/13/247/2009/</article_url>
	<abstract_html>http://www.hydrol-earth-syst-sci.net/13/247/2009/hess-13-247-2009.html</abstract_html>
	<fulltext_pdf>http://www.hydrol-earth-syst-sci.net/13/247/2009/hess-13-247-2009.pdf</fulltext_pdf>
	<start_page>247</start_page>
	<end_page>257</end_page>
	<publication_date>2009-02-23</publication_date>
	<article_title content_type="html">&lt;i&gt;HESS Opinions&lt;/i&gt;: &quot;Climate, hydrology, energy, water: recognizing uncertainty and seeking sustainability&quot;</article_title>
	<authors>
		<author numeration="1" affiliations="1">
			<name>D. Koutsoyiannis</name>
			<email>dk@itia.ntua.gr</email>
		</author>
		<author numeration="2" affiliations="1">
			<name>C. Makropoulos</name>
		</author>
		<author numeration="3" affiliations="2">
			<name>A. Langousis</name>
		</author>
		<author numeration="4" affiliations="1">
			<name>S. Baki</name>
		</author>
		<author numeration="5" affiliations="1">
			<name>A. Efstratiadis</name>
		</author>
		<author numeration="6" affiliations="1">
			<name>A. Christofides</name>
		</author>
		<author numeration="7" affiliations="1">
			<name>G. Karavokiros</name>
		</author>
		<author numeration="8" affiliations="1">
			<name>N. Mamassis</name>
		</author>
	</authors>
	<affiliations>
		<affiliation numeration="1" content_type="html">Dept. of Water Resources and Environment, School of Civil Engineering, National Technical University of Athens, Greece</affiliation>
		<affiliation numeration="2" content_type="html">Dept. of Civil and Environmental Engineering, MIT, Cambridge, MA, USA</affiliation>
	</affiliations>
	<abstract content_type="html">Since 1990 extensive funds have been spent on research in climate change.
Although Earth Sciences, including climatology and hydrology, have benefited
significantly, progress has proved incommensurate with the effort and funds,
perhaps because these disciplines were perceived as &quot;tools&quot; subservient to
the needs of the climate change enterprise rather than autonomous sciences.
At the same time, research was misleadingly focused more on the &quot;symptom&quot;,
i.e. the emission of greenhouse gases, than on the &quot;illness&quot;, i.e. the
unsustainability of fossil fuel-based energy production. Unless energy
saving and use of renewable resources become the norm, there is a real risk
of severe socioeconomic crisis in the not-too-distant future. A framework
for drastic paradigm change is needed, in which water plays a central role,
due to its unique link to all forms of renewable energy, from production
(hydro and wave power) to storage (for time-varying wind and solar sources),
to biofuel production (irrigation). The extended role of water should be
considered in parallel to its other uses, domestic, agricultural and
industrial. Hydrology, the science of water on Earth, must move towards this
new paradigm by radically rethinking its fundamentals, which are
unjustifiably trapped in the 19th-century myths of deterministic theories
and the zeal to eliminate uncertainty. Guidance is offered by modern
statistical and quantum physics, which reveal the intrinsic character of
uncertainty/entropy in nature, thus advancing towards a new understanding
and modelling of physical processes, which is central to the effective use
of renewable energy and water resources.</abstract>
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