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SCIENCEWednesday 18 November

Coal not going away anytime soon despite renewables push 

In this Tuesday, Nov. 3, 2015 photo, a worker guides a conveyor                       month.                            day by the Institute for        this year showed the coun-
as it loads coal into a trailer truck at a coal mine near Ordos in                    Demand for coal is level-         Energy Economics and Fi-        try had greatly underesti-
northern China’s Inner Mongolia Autonomous Region.                                    ing off, but it will remain       nancial Analysis suggests       mated its coal consump-
                                                                                      a key energy source for           coal consumption peaked         tion from 2000 to 2013, but
                                                                    Associated Press  decades, no matter how            globally in 2013 and is set     still showed a dip last year.
                                                                                      many billions of dollars of       to decline a further 2 to 4     Beijing is trying to reduce
LOUISE WATT                     It is the biggest source of                           investment go into cleaner        percent in 2015 because of      dependency on coal to
Associated Press                heat-trapping greenhouse                              energy like wind and solar.       declining consumption by        ease air pollution by switch-
BEIJING (AP) — Coal:            gases that negotiators                                Too much of the world de-         China and other big coal        ing to natural gas in major
Can’t live with it and can’t    around the world hope to                              pends on it now for heating       consumers.                      cities.
live without it — at least not  limit in an agreement to be                           and power generation for          The institute said China’s
yet.                            thrashed out in Paris next                            us to suddenly live without       coal consumption had fall-      China also has become a
                                                                                      it.                               en 5.7 percent from Janu-       leader in clean energy. Last
                                                                                      There are vast parts of the       ary to September. In the        year, it invested more in re-
                                                                                      developing world that will        U.S., domestic consump-         newable power and fuels
                                                                                      continue to see growth            tion was down 11 percent        and had more hydropower
                                                                                      in demand for electricity,        and coal’s share of the         and wind capacity than
                                                                                      driven by sales of televi-        electricity market has fall-    any other country, and was
                                                                                      sions, refrigerators and the      en to 35 percent, from 50       second to Germany in so-
                                                                                      construction of highways          percent a decade ago.           lar capacity, according to
                                                                                      and malls as incomes in-          Record-low U.S. gas prices,     a report earlier this year by
                                                                                      crease, said Xizhou Zhou,         record expansion of renew-      REN21, a Paris-based non-
                                                                                      the China chief for energy        able energy and a decou-        profit group that promotes
                                                                                      consultants IHS Energy.           pling of electricity demand     renewable energy.
                                                                                      “The cheapest way to pro-         from economic growth are        The cost of renewable ener-
                                                                                      vide electricity in many of       “permanently eroding”           gy is becoming more com-
                                                                                      these places is still coal-       coal demand in the U.S.,        petitive every year, while
                                                                                      based,” Zhou said.                the Cleveland, Ohio-based       coal-fired power plants are
                                                                                      This underlines the chal-         IEEFA said.                     increasingly expensive as
                                                                                      lenge facing negotiators          Still, coal provides more       air pollution controls grow
                                                                                      who will convene in Paris         than 40 percent of the          more stringent.
                                                                                      Nov. 30 to agree on how to        world’s electricity and 29      “You have got a wave of
                                                                                      limit emissions of fossil fuels.  percent of its energy sup-      new technologies and in-
                                                                                      Scientists say coal, oil and      ply, second only to oil at 31   vestments coming where
                                                                                      gas emissions, including          percent, according to the       historically power grids
                                                                                      carbon dioxide and meth-          Paris-based International       were heavily reliant on
                                                                                      ane, are key drivers of rising    Energy Agency. The agen-        coal,” said Tim Buckley, a
                                                                                      temperatures that could           cy projects coal consump-       Sydney-based energy ana-
                                                                                      lead to intense droughts or       tion to continue growing        lyst with the Institute for En-
                                                                                      flooding of island nations.       somewhat in coming years,       ergy Economics and Finan-
                                                                                      Abundant and cheap,               largely owing to increased      cial Analysis.
                                                                                      coal emits not only soot but      coal demand in India and        The continued develop-
                                                                                      double the greenhouse             Southeast Asia.                 ment of wind, solar and
                                                                                      gas emissions per unit of         Coal’s future is closely tied   hydropower is good for
                                                                                      energy of natural gas.            to China, the world’s big-      combatting global warm-
                                                                                      In recent years, slowing          gest coal user, producer        ing, “but that’s almost an
                                                                                      economic growth, gains            and importer. It burns 4        ancillary benefit — the
                                                                                      in energy efficiency and          billion tons of coal a year,    key drivers are econom-
                                                                                      advances in renewable-            four times as much as the       ics, technology, leadership
                                                                                      energy production have            United States.                  and energy security and air
                                                                                      dampened demand for               Coal accounts for nearly        and water pollution,” Buck-
                                                                                      coal in key markets. Stricter     two-thirds of China’s ener-     ley said.
                                                                                      air emissions regulations in      gy, but in 2014 its coal con-   India, the nation with the
                                                                                      Europe, the production of         sumption fell 2.9 percent       third-highest carbon emis-
                                                                                      shale gas in the U.S. and         year-on-year according          sions after China and the
                                                                                      the restructuring of the Chi-     to official statistics, or 2.6  U.S., is at a point where
                                                                                      nese economy away from            percent according to the        both clean and dirty en-
                                                                                      heavily polluting industries      IEEFA report — the first an-    ergy are being scaled up.
                                                                                      are all weighing down on          nual decrease in 15 years.      About a fifth of its more
                                                                                      demand.                           A revision to official Chi-     than 1.2 billion people still
                                                                                      An analysis released Mon-         nese data released earlier      lack electricity.q
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