Page 30 - How It Works - Book Of Amazing Answers To Curious Questions, Volume 05-15
P. 30

The patterns in

                                                                                   the ice are bubbles of
                                                                                       methane, a highly

                                                                                        flammable gas




         Why is Lake




         Abraham flammable?






          What forms the explosive bubbles trapped beneath these frozen waters?

             t may look spectacular, but this frozen lake   The methane is produced by bacteria that   in the Earth’s atmosphere to cause global
             should be approached with caution,   feeds on organic matter like leaves and dead   warming. This is also creating a vicious cycle. As
         Iparticularly if you’re holding a lit match. The   animals that have fallen into the lake. Because   warmer temperatures cause more of the frozen
          incredible white patterns visible within the ice   the man-made lake bed was covered in trees,   ground around the lake to thaw and collapse,
          are actually bubbles of methane, which is a   grass and plants before it was flooded in 1972, it   more trees fall into the water. This increase in
          highly flammable gas.                also contains much more organic matter than   organic matter leads to more methane
           As the lake melts in spring, these bubbles are   any natural lake would. This means there is   production. This methane released by Lake
          able to reach the surface, where they pop,   more for the bacteria to feast on, which causes   Abraham alone won’t have much of an effect, but
          allowing the methane to escape. Some brave   them to produce a larger amount of methane.   there are thousands of other bodies of water
          scientists have even tested the presence of this   Although the lake is great for putting on   around the Arctic producing it too. Scientists
          gas by poking holes in the ice and holding a   amazing fire shows, it is not so good for climate   estimate that more than ten times the amount of
          lighter over the surface, sending huge flames into   change. Methane is a greenhouse gas 25 times   methane currently in the Earth’s atmosphere
          the air.                             more potent than carbon dioxide, trapping heat   will come out of these lakes in the near future.


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