The mankind
needs not one, but one and a half of Earth to continue to live without changes
in the habits.
Also for
the last 40 years the number of vertebrate animals in the world has decreased
twice. Of course scientists did not recalculate all individuals manually: their
data are based on dynamics of number about ten thousand populations of 3038
species of mammals, birds, reptiles, amphibia and fishes. In total on Earth
about 60 thousand species of vertebrata are described.
The
indicator of number of animals is called an index of the live planet and the
indicator concerning natural resources — an ecological trace. The ecological
trace by their definition is the area necessary to make the natural resources
and the benefits of an ecosystem consumed by us. This trace exceeds planet
biocapacity now — that area which is at our disposal.
Today the
mankind cuts down trees quicker than they grow, catches fish more often than
new appears, releases more carbon dioxide into the atmosphere than can absorb
the woods and oceans. The countries with the biggest ecological trace per
capita is Kuwait, Qatar, the United Arab Emirates, Denmark and Belgium. Russia
takes the 39th place in this list. But our country is included into the list of
the states with the biggest ecological trace in absolute values — along with
China, the USA, India and Brazil. Thus if the average Russian wants to continue
to exist without changing anything in the way of life two planets Earth are
necessary.
We hope
that this small article will force many to reconsider the habits!
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