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A28    SCIENCE
                     Friday 17 august 2018
            Not just land heat waves: Oceans are in hot water, too




            By CHRISTINA LARSON                                                                                                 tion. Because oceans both
            WASHINGTON (AP) — Even                                                                                              absorb  and  release  heat
            the  oceans  are  breaking                                                                                          more  slowly  than  air,  most
            temperature records in this                                                                                         marine heat waves last for
            summer of heat waves.                                                                                               at least several days — and
            Off  the  San  Diego  coast,                                                                                        some  for  several  weeks,
            scientists  earlier  this  month                                                                                    said Frolicher.
            recorded all-time high sea-                                                                                         "We  knew  that  average
            water  temperatures  since                                                                                          temperatures  were  rising.
            daily measurements began                                                                                            What  we  haven't  focused
            in 1916.                                                                                                            on before is that the rise in
            "Just  like  we  have  heat                                                                                         the average comes at you
            waves  on  land,  we  also                                                                                          in clumps of very hot days
            have  heat  waves  in  the                                                                                          — a shock of several days
            ocean,"  said  Art  Miller  of                                                                                      or weeks of very high tem-
            the  Scripps  Institution  of                                                                                       peratures,"  said  Michael
            Oceanography.                                                                                                       Oppenheimer, a Princeton
            Between  1982  and  2016,                                                                                           University  climate  scientist
            the number of "marine heat                                                                                          who  was  not  involved  in
            waves"  roughly  doubled,                                                                                           the study.
            and  likely  will  become                                                                                           Many  sea  critters  have
            more  common  and  in-                                                                                              evolved  to  survive  within
            tense as the planet warms,   n this Tuesday, Feb. 26, 2013 file photo, a Guadalupe fur seal, foreground, passes by as SeaWorld   a  fairly  narrow  band  of
            a  study  released  Wednes-  animal rescue team member Heather Ruce feeds a California sea lion at a rescue facility in San   temperatures   compared
            day found. Prolonged peri-   Diego, with rescue crews seeing a higher than average amount of stranded sea lions.    to  creatures  on  land,  and
            ods of extreme heat in the                                                                         Associated Press  even incremental warming
            oceans  can  damage  kelp                                                                                           can be disruptive.
            forests and coral reefs, and  accelerate   with   global  in Switzerland, who led the  events in which sea-surface  Some  free-swimming  sea
            harm fish and other marine  warming,"     said   Thomas  research.                     temperatures    exceeded  animals  like  bat  rays  or
            life.                        Frolicher,  a  climate  scien-  His  team  defined  marine  the 99th percentile of mea-  lobsters  may  shift  their
            "This  trend  will  only  further  tist at the University of Bern  heat  waves  as  extreme  surements for a given loca-  routines.q

            Endangered Green, Loggerhead turtles make comeback in Cyprus



            By PETROS KARADJIAS and                                                                out  as  long  as  three  de-  key beaches in the island's
            MENELAOS HADJICOSTIS                                                                   cades, the results are "quite  west and northwest, keep-
             Associated Press                                                                      spectacular,"  said  Demet-  ing curious locals and tour-
            LARA  BEACH,  Cyprus  (AP)                                                             ropoulos.                    ists at bay.
            —  For  these  ancient  rep-                                                           This  increase  is  especially  Before this, residents would
            tiles,  a  stretch  of  beach                                                          encouraging for the Green  camp  on  the  beach  and
            on  the  Mediterranean  is-                                                            turtle, which lays its eggs in  fire up barbeques with little
            land  of  Cyprus  has  been                                                            only two countries — Turkey  concern for the turtles. But
            their home for thousands of                                                            and European Union mem-      over time, Hadjichristopho-
            years.                                                                                 ber Cyprus. There are only  rou says the region has built
            Against the setting sun, the                                                           about 1,500 female Green  up a conservationist culture
            tiny  turtles  that  have  just                                                        turtles that lay eggs in those  — from schoolkids to adults
            hatched  on  Lara  Beach                                                               two countries, as opposed  —  so  that  folks  who  spot
            strain  against  the  surf  to                                                         to  6,000  female  Logger-   something  like  an  injured
            reach  the  Mediterranean                                                              head  —  or  Careta  Care-   turtle  notify  the  authorities
            Sea  and  embark  on  their                                                            ta  —  turtles  that  lay  eggs  immediately.
            life's journey.               In this photo taken on Thursday, Aug. 9, 2018, a conservationist   across the Mediterranean.  Turtles  have  been  around
                                         holds up a tiny sea turtle that just hatched from its nest on Cyprus'
            And in 20 to 30 years, they'll   protected Lara beach.                                 According  to  marine  bi-   for  200  million  years  on
            be back at this exact loca-                                           Associated Press   ologist  and  conservation  Earth  but  have  called  the
            tion to lay their own eggs.                                                            program co-head Myroula  Mediterranean  home  only
            After being hunted to near  turtles are making a come-    in 1978, there were just 300  Hadjichristophorou,  Cyprus  for  about  10,000  years,
            extinction in the first half of  back  thanks  to  pioneering  turtle  nests  on  the  island's  has  200-300  Green  turtles  said   Hadjichristophorou.
            the last century, the Medi-  conservation efforts, Cypri-  beaches  where  the  rep-   who  lay  eggs  while  the  Remarkably,  the  turtles'
            terranean's   endangered  ot marine biologists say.       tiles return to lay their eggs.  number for Loggerheads is  own  ingrained  "biological
            Loggerhead  and  Green  When  those  efforts  began  The  population  has  grown  more than double that.            GPS"  brings  them  back  to
                                                                      to  around  1,100  nests  last  Cyprus  instituted  its  con-  lay their eggs to the same
                                                                      year, said Andreas Demet-    servation  program  long  beaches  that  their  ances-
                                                                      ropoulos,  the  founder  and  before any other EU mem-    tors  chose  thousands  of
                                                                      co-head of a turtle conser-  ber and that has paid divi-  years ago.
                                                                      vation  program  under  the  dends,  said  Hadjichristofo-  "When  people  come  here
                                                                      island-nation's Fisheries and  rou.  Efforts  include  guard-  with  their  families,  their
                                                                      Marine  Research  Depart-    ing against the turtles' main  children,  they  see  the  ba-
                                                                      ment.                        predator  —  foxes  —  and  bies  coming  out  of  their
                                                                      That  may  not  sound  a  lot,  passing  crucial  legislation  nests, this is something that
                                                                      but  with  the  turtles'  repro-  in  1989  that  allowed  con-  they will never forget," said
                                                                      ductive  cycles  stretching  servationists to protect two  Hadjichristophorou.q
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