<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content="text/html; charset=iso-8859-1" http-equiv=Content-Type>
<META name=GENERATOR content="MSHTML 8.00.6001.18928">
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff><FONT size=2 face=Arial>
<DIV jQuery1335544783855="3"><CITE><FONT size=3><ABBR class=slug-jnl-abbrev
title=Science>Science</ABBR><SPAN class=slug-pub-date itemprop="datePublished">
27 April 2012 </SPAN><BR><SPAN class=slug-vol>Vol. 336 </SPAN></FONT><SPAN
class=slug-issue><FONT size=3>no. 6080</FONT> </SPAN></CITE></DIV>
<DIV jQuery1335544783855="3"><CITE><SPAN
class=slug-issue></SPAN></CITE> </DIV>
<DIV jQuery1335544783855="3"><CITE><SPAN class=slug-issue></SPAN><SPAN
class=slug-pages>p. 405 </SPAN><BR>DOI: <SPAN class=slug-doi
title=10.1126/science.336.6080.405>10.1126/science.336.6080.405
</SPAN></CITE></DIV>
<DIV> </DIV>
<DIV><SPAN class=article-overline jQuery1335544783855="5">Global Warming</SPAN>
</DIV>
<DIV class="article summary-view nonresearch-content" jQuery1335544783855="6"
itemprop="articleBody"><FONT size=4>The Greenhouse Is Making the Water-Poor Even
Poorer</FONT></DIV>
<DIV id=contrib-1 class=last><SPAN class=name><A class=name-search
href="http://www.sciencemag.org/search?author1=Richard+A.+Kerr&sortspec=date&submit=Submit">Richard
A. Kerr</A></SPAN></DIV>
<DIV class=last><SPAN class=name></SPAN> </DIV>
<DIV class="article summary-view nonresearch-content" jQuery1335544783855="6"
itemprop="articleBody"><STRONG>Summary</STRONG></DIV>
<P id=p-2 class="section summary" jQuery1335544783855="6"
itemprop="articleBody">The question of how bad global warming will get has long
been cast in terms of how hot the world will get. But perhaps more important
will be how much rising greenhouse gases crank up the water cycle. Theory and
models predict that a strengthening greenhouse will increase precipitation where
it is already relatively high and decrease it where it is already low. A new
study of the ocean's changing salinity on page <A
href="http://www.sciencemag.org/cgi/content/short/337/6079/455">455</A> of this
week's issue of <EM>Science</EM> confirms that this mechanism of water-cycle
amplification has been operating for the past half-century. The result also
suggests that the water cycle is intensifying quickly under global warming—twice
as fast as climate models have been predicting. </P>
<P class="section summary" jQuery1335544783855="6"
itemprop="articleBody">**********************************</P>
<DIV id=slugline class="section summary" jQuery1335544783855="6"
itemprop="articleBody" jQuery1335545151023="3"><CITE><SPAN class=slug-pages>pp.
455-458 </SPAN><BR>DOI: <SPAN class=slug-doi
title=10.1126/science.1212222>10.1126/science.1212222 </SPAN></CITE></DIV>
<DIV class="section summary" jQuery1335544783855="6"
itemprop="articleBody"> </DIV><SPAN
class=highwire-journal-article-marker-start></SPAN>
<DIV id=article-title-1 class="article abstract-view" itemprop="headline"
jQuery1335545151023="5" sizset="0" sizcache="1"><FONT size=4>Ocean Salinities
Reveal Strong Global Water Cycle Intensification During 1950 to
2000</FONT></DIV>
<DIV id=contrib-1 class=contributor itemscope="itemscope"
itemtype="http://schema.org/Person" jQuery1335544783855="6" itemprop="author"
jQuery1335545151023="5" sizset="0" sizcache="0"><SPAN class=name
itemprop="name"><A class=name-search
href="http://www.sciencemag.org/search?author1=Paul+J.+Durack&sortspec=date&submit=Submit">Paul
J. Durack</A></SPAN><A id=xref-aff-1-1 class=xref-aff
href="http://www.sciencemag.org/content/336/6080/455.abstract#aff-1"
jQuery1335545151023="20"><SUP>1</SUP></A><SPAN class=xref-sep>,</SPAN><A
id=xref-aff-2-1 class=xref-aff
href="http://www.sciencemag.org/content/336/6080/455.abstract#aff-2"
jQuery1335545151023="21"><SUP>2</SUP></A><SPAN class=xref-sep>,</SPAN><A
id=xref-aff-3-1 class=xref-aff
href="http://www.sciencemag.org/content/336/6080/455.abstract#aff-3"
jQuery1335545151023="22"><SUP>3</SUP></A><SPAN class=xref-sep>,</SPAN><A
id=xref-aff-4-1 class=xref-aff
href="http://www.sciencemag.org/content/336/6080/455.abstract#aff-4"
jQuery1335545151023="23"><SUP>4</SUP></A><SPAN class=xref-sep>,</SPAN><A
id=xref-corresp-1-1 class=xref-corresp
href="http://www.sciencemag.org/content/336/6080/455.abstract#corresp-1">*</A>,
<SPAN class=name itemprop="name"><A class=name-search
href="http://www.sciencemag.org/search?author1=Susan+E.+Wijffels&sortspec=date&submit=Submit">Susan
E. Wijffels</A></SPAN><A id=xref-aff-1-2 class=xref-aff
href="http://www.sciencemag.org/content/336/6080/455.abstract#aff-1"
jQuery1335545151023="24"><SUP>1</SUP></A><SPAN class=xref-sep>,</SPAN><A
id=xref-aff-3-2 class=xref-aff
href="http://www.sciencemag.org/content/336/6080/455.abstract#aff-3"
jQuery1335545151023="25"><SUP>3</SUP></A>, <SPAN class=name><A class=name-search
href="http://www.sciencemag.org/search?author1=Richard+J.+Matear&sortspec=date&submit=Submit">Richard
J. Matear</A></SPAN><A id=xref-aff-1-3 class=xref-aff
href="http://www.sciencemag.org/content/336/6080/455.abstract#aff-1"
jQuery1335545151023="26"><SUP>1</SUP></A><SPAN class=xref-sep>,</SPAN><A
id=xref-aff-3-3 class=xref-aff
href="http://www.sciencemag.org/content/336/6080/455.abstract#aff-3"
jQuery1335545151023="27"><SUP>3</SUP></A><SUP></SUP></DIV>
<DIV class=contributor itemscope="itemscope" itemtype="http://schema.org/Person"
jQuery1335544783855="6" itemprop="author" jQuery1335545151023="5" sizset="0"
sizcache="0"><SUP>1</SUP>Centre for Australian Weather and Climate Research,
Commonwealth Scientific and Industrial Research Organisation (CSIRO) Marine and
Atmospheric Research, General Post Office (GPO) Box 1538, Hobart, Tasmania 7001,
Australia. <SUP>2</SUP>Institute for Marine and Antarctic Studies, University of
Tasmania, Private Bag 129, Hobart, Tasmania 7001, Australia. <SUP>3</SUP>Wealth
from Oceans National Research Flagship, CSIRO, GPO Box 1538, Hobart, Tasmania
7001, Australia. <SUP>4</SUP>Program for Climate Model Diagnosis and
Intercomparison, Lawrence Livermore National Laboratory, Mail Code L-103, 7000
East Avenue, Livermore, CA 94550, USA. To whom correspondence should be
addressed. E-mail: <A
href="mailto:pauldurack@llnl.gov">pauldurack@llnl.gov</A></DIV>
<DIV class=contributor itemscope="itemscope" itemtype="http://schema.org/Person"
jQuery1335544783855="6" itemprop="author" jQuery1335545151023="5" sizset="0"
sizcache="0"> </DIV>
<DIV class="article abstract-view" itemprop="articleBody"
jQuery1335545151023="5" sizset="0" sizcache="1"><STRONG>Abstract</STRONG></DIV>
<DIV class="section summary" jQuery1335544783855="6" itemprop="articleBody">
<DIV class="section abstract" itemprop="articleBody" jQuery1335545151023="5"
sizset="0" sizcache="1">
<P id=p-3>Fundamental thermodynamics and climate models suggest that dry regions
will become drier and wet regions will become wetter in response to warming.
Efforts to detect this long-term response in sparse surface observations of
rainfall and evaporation remain ambiguous. We show that ocean salinity patterns
express an identifiable fingerprint of an intensifying water cycle. Our 50-year
observed global surface salinity changes, combined with changes from global
climate models, present robust evidence of an intensified global water cycle at
a rate of 8 ± 5% per degree of surface warming. This rate is double the response
projected by current-generation climate models and suggests that a substantial
(16 to 24%) intensification of the global water cycle will occur in a future 2°
to 3° warmer world. </P></DIV></DIV></FONT><BR>
<BR>
__________ Información de ESET NOD32 Antivirus, versión de la base de firmas de virus 7090 (20120427) __________<BR>
<BR>
ESET NOD32 Antivirus ha comprobado este mensaje.<BR>
<BR>
<A HREF="http://www.eset.com">http://www.eset.com</A><BR>
</BODY></HTML>