Earth has skilled five
major group extermination events associated with climate changes that have
changed the characteristics of the entire planet. An article in the journal
Nature, which involved researchers from the National Research Council (CSIC),
analyzes the forces that "may be leading" a new change in planetary
status and provides possible tools to minimize its consequences.
Epoch’s transition that
the Earth has experienced throughout its history represents only 5%. The
remaining time was stable. The last major change occurred some 14,000 years
ago, when 30% of the land area lost the ice that covered during the last
glacial period. The last ice age lasted about 100,000 years, while the
transition period was extended a little over three millennia. Since then, the
planet has maintained more or less stable characteristics to the emergence and
development of human civilization. Researcher at the Biological Station of
Donana Jordi Bascompte, who participated in the work, states that “humans are
causing changes that could lead to a new planetary status, these changes appear
to involve alterations in the chemistry of the atmosphere and oceans, and major
disruptions in energy flows from the beginning to the end of the food chain.”
The research highlights that humanity therefore is the main promoter of the
circumstances that are driving this change in planetary status. The population
increase is associated with increased consumption of resources and energy, and
processing fragmentation of the landscape and altering the weather, ocean and
land, which in turn threatens the survival of the biodiversity present.
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