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A28    SCIENCE
                  Tuesday 27 March 2018
            U.N. reports see a lonelier planet with fewer plants, animals




            BY  SETH  BORENSTEIN,  AP                                                                                           of the species that only live
            WASHINGTON (AP) — Earth                                                                                             in  Europe  are  now  threat-
            is losing plants, animals and                                                                                       ened.  In  the  last  decade,
            clean water at a dramatic                                                                                           42  percent  of  the  land
            rate, according to four new                                                                                         plant  and  animal  species
            United Nations scientific re-                                                                                       have declined, said Europe
            ports that provide the most                                                                                         co-chair  Mark  Rounsevell
            comprehensive  and  local-                                                                                          of the Karlsruhe Institute of
            ized look at the state of bio-                                                                                      Technology in Germany.
            diversity.                                                                                                          Wetlands have been cut in
            Scientists  meeting  in  Co-                                                                                        half since 1970.
            lombia issued four regional                                                                                         AFRICA
            reports  Friday  on  how  well                                                                                      Africa  could  lose  half  of
            animal and plants are do-                                                                                           some  bird  and  mammal
            ing in the Americas; Europe                                                                                         species by 2100. And more
            and  Central  Asia;  Africa;                                                                                        than 60 percent of the con-
            and the Asia-Pacific area.                                                                                          tinent's people depend on
            Their conclusion after three                                                                                        natural  resources  for  their
            years of study : Nowhere is                                                                                         livelihoods,   said   report
            doing well.                                                                                                         co-chair  Luthando  Dziba
            The      Intergovernmental                                                                                          of  South  African  National
            Science-Policy  Platform on                                                                                         Parks.
            Biodiversity  and  Ecosystem                                                                                        Already more than 20 per-
            was  about  more  than  just   In this Friday, March 2, 2018 file photo, keeper Zachariah Mutai attends to Fatu, one of only two   cent of Africa's species are
            critters,  said  study  team   female northern white rhinos left in the world, in the pen where she is kept for observation, at the   threatened,  endangered
                                         Ol Pejeta Conservancy in Laikipia county in Kenya.
            chairman  Robert  Watson.                                                                          Associated Press   or  extinct.  While  scientists
            It is about keeping Earth liv-                                                                                      said  government  and  so-
            able  for  humans,  because   chemicals have hurt plants  by the year 2050 the Ameri-  If  trends  continue,  there   ciety  needs  to  change  its
            we  rely  on  biodiversity  for   and animals, wetlands and  cas  will  have  15  percent  will  be  no  "exploitable  fish   ways,  individuals  can  use
            food,  clean  water  and     mangroves  that  clean  up  fewer  plants  and  animals  stocks" for commercial fish-  less energy, less water and
            public  health,  the  promi-  pollution are disappearing,  than  now.  That  means  ing  by  2048.  Around  that    eat  less  red  meat,  Watson
            nent  British  and  U.S.  scien-  and the world's waters are  there  will  be  40  percent  same,  the  region  will  lose   said. "A balanced diet can
            tist said. "This is undermining   overfished, he said.    fewer  plants  and  animals  45  percent  of  its  biodiver-  really  help,"  he  said.  There
            well-being across the plan-  Man-made           climate  in the Americas than in the  sity  and  about  90  percent   are "lots of individual things
            et,  threatening  us  long-  change  is  getting  worse,  early 1700s.                 of its crucial corals, if noth-  you can do."
            term  on  food  and  water,"   and  global  warming  will  Nearly a quarter of the spe-  ing changes, said Asia co-  The outlook is bleak if soci-
            Watson said in an interview.  soon  hurt  biodiversity  as  cies  that  were  fully  mea-  chair Sonali Seneratna Sell-  ety  doesn't  change,  but  it
            Scientists  pointed  to  this   much as all the other prob-  sured are now threatened,  amuttu, a senior researcher   still can, Watson said.
            week's  death  of  the  last   lems  combined,  Watson  Rice said.                     at  the  International  Water   "Some  species  are  threat-
            male  northern  white  rhino   said.                      And  when  all  of  "nature's  Management Institute.      ened with extinctions. Oth-
            in Africa, severe declines in   "We  keep  making  choices  contributions"  are  taken  "All  major  ecosystems  are   ers,  just  pure  numbers  will
            the  numbers  of  elephants,   to  borrow  from  the  future  into  account,  nearly  two-  threatened  in  the  region,"   go  down,"  Watson  said.  "It
            tigers  and  pangolins,  but   to  live  well  today,"  said  thirds  are  declining  and  she said.                will be a lonelier place rela-
            said those are only the most   Jake  Rice,  Canada's  chief  more  than  one-fifth  are  EUROPE AND CENTRAL ASIA    tive to our natural world. It's
            visible  and  charismatic  of   government  scientist  for  "decreasing  strongly,"  Rice  Even though it is the region   a  moral  issue.  Do  we  hu-
            species that are in trouble.  fisheries  and  oceans,  who  said.                      that  Watson  said  may  be   mans have a right to make
            What's happening is a side   co-chaired  the  Americas  ASIA-PACIFIC                   doing the best, 28 percent   them go extinct."q
            effect of the world getting   report.
            wealthier and more crowd-    Duke  University  conserva-
            ed  with  people,  Watson    wasn't  part  of  the  study  Cat-and-mouse game: Mountain
                                         tionist  Stuart  Pimm,  who
            said.  Humans  need  more
            food,  more  clean  water,   team,  said  the  reports
            more  energy  and  more      make sense and are based     lion roams California backyards
            land. And the way society    on  well-established  scien-
            has  tried  to  achieve  that   tific data: "Are things pretty
            has cut down on biodiver-    dire? Yes."                  AZUSA,  Calif.  (AP)  —  A  ficers tranquilized it.       San Gabriel Mountains wil-
            sity, he said.               Among  the  regional  find-  mountain    lion   roamed  The lion was spotted Mon-      derness.
            Crucial  habitat  has  been   ings:                       through  backyards  in  a  day morning in the eastern  TV       news     helicopters
            cut  apart,  alien  species   THE AMERICAS                neighborhood  outside  Los  Los  Angeles  County  com-    showed  it  pawing  at  the
            have     invaded    places,   If  current  trends  continue,  Angeles  before  wildlife  of-  munity  of  Azusa,  near  the  door of a home and jump-
                                                                                                                                ing onto the roof of a shed,
                                                                                                                                then leaping over a fence.
                                                                                                                                Azusa police contained the
                                                                                                                                big cat until wildlife officers
                                                                                                                                arrived  and  used  social
                                                                                                                                media to warn residents to
                                                                                                                                stay indoors.
                                                                                                                                After  being  tranquilized,
                                                                                                                                the sleeping lion was load-
                                                                                                                                ed  onto  a  pickup  truck
                                                                                                                                to  be  moved  out  of  the
                                                                                                                                neighborhood.q
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