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food for thought

there is no escape from the truth..............
are we really as intelligent as we think we are?...........

Thomas Rosburg
Dept. of Biology
Drake University
2507 University Ave.
Des Moines, Iowa  50311-4505

515-271-2920
thomas.rosburg@drake.edu
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EARTH DAY PLUS THIRTY, AS SEEN BY THE EARTH
By Donella Meadows, adjunct professor at Dartmouth College.

    If, in the thirty Earth Day celebrations we have held since 1970,
the human population and economy have become any more respectful of the
Earth, the Earth hasn't noticed.
    The planet is not impressed by fancy speeches.  Leonardo DiCaprio
interviewing Bill Clinton about global warming is not an Earth-shaking
event.  The Earth has no way of registering good intentions or future
inventions or high hopes.  It doesn't even pay attention to dollars, which
are, from a planet's point of view, just a charming human invention.
Planets measure only physical things-energy and materials and their flows
into and out of the changing populations of living creatures.
    What the Earth sees is that on the first Earth Day in 1970 there
were 3.7 billion of those hyperactive critters called humans, and now there
are over 6 billion.
    Back in 1970 those humans drew from the Earth's crust 46 million
barrels of oil every day-now they draw 78 million.
    Natural gas extraction has nearly tripled in thirty years, from 34
trillion cubic feet per year to 95 trillion.  We mined 2.2 billion metric
tons in 1970; this year we'll mine about 3.8 billion.
    The planet feels this fossil fuel use in many ways, as the fuels are
extracted (and spilled) and shipped (and spilled) and refined (generating
toxics) and burned into numerous pollutants, including carbon dioxide, which
traps outgoing energy and warms things up.  Despite global conferences and
brave promises, what the Earth notices is that human carbon emissions have
increased from 3.9 million metric tons in 1970 to an estimated 6.4 million
this year.
    You would think that an unimaginably huge thing like a planet would
not notice the one degree (Fahrenheit) warming it has experienced since
1970.  But on the scale of a whole planet, one degree is a big deal,
especially since it is not spread evenly.  The poles have warmed more than
the equator, the winters more than the summers, the nights more than the
days.  That means that temperature DIFFERENCES from one place to another
have been changing much more than the average temperature has changed.
Temperature differences are what make winds blow, rains rain, ocean currents
flow.
    All creatures, including humans, are exquisitely attuned to the
weather.  All creatures, including us, are noticing weather weirdness and
trying to adjust, by moving, by fruiting earlier or migrating later, by
building up whatever protections are possible against flood and drought.
The Earth is reacting to weather changes too, shrinking glaciers, splitting
off nation-sized chunks of Antarctic ice sheet, enhancing the cycles we call
El Nino and La Nina.
    "Earth Day, Shmearth Day," the planet must be thinking as its fever
mounts.
    "Are you folks ever going to take me seriously?"
    Since the first Earth Day our global vehicle population has swelled
from 246 to 730 million.  Air traffic has gone up by a factor of six.  The
rate at which we grind up trees to make paper has doubled (to 200 million
metric tons per year).  We coax from the soil, with the help of strange
chemicals, 2.25 times as much wheat, 2.5 times as much corn, 2.2 times as
much rice, almost twice as much sugar, almost four times as many soybeans as
we did thirty years ago.  We pull from the oceans almost twice as much fish.

    With the fish we can see clearly how the planet behaves, when we
push it too far.  It does not feel sorry for us; it just follows its own
rules.  Fish become harder and harder to find.  If they are caught before
they're old enough to reproduce, if their nursery habitat is destroyed, if
we scoop up not only the cod, but the capelin upon which the cod feeds, the
fish may never come back.  The Earth does not care that we didn't mean it,
that we promise not to do it again, that we make nice gestures every Earth
Day.
    We have among us die-hard optimists who will berate me for not
reporting the good news since the last Earth Day.  There is plenty of it,
but it is mostly measured in human terms, not Earth terms.  Average human
life expectancy has risen since 1970 from 58 to 66 years.  Gross world
product has more than doubled, from 16 to 39 trillion dollars.  Recycling
has increased, but so has trash generation, so the Earth receives more
garbage than ever before.  Wind and solar power generation have soared, but
so have coal-fired, gas-fired and nuclear generation.
    In human terms there has been breathtaking progress.  In 1970 there
weren't any cell phones or video players.  There was no Internet; there were
no dot-coms.  Nor was anyone infected with AIDS, of course, nor did we have
to worry about genetic engineering.  Global spending on advertising was only
one-third of what it is now (in inflation-corrected dollars).  Third-World
debt was one-eighth of what it is now.
    Whether you call any of that progress, it is all beneath the notice
of the Earth.  What the Earth sees is that its species are vanishing at a
rate it hasn't seen in 65 million years.  That 40 percent of its
agricultural soils have been degraded.  That half its forests have
disappeared and half its wetlands have been filled or drained, and that,
despite Earth Day, all these trends are accelerating.
    Earth Day is beginning to remind me of Mother's Day, a commercial
occasion upon which you buy flowers for the person who, every other day of
the year, cleans up after you.  Guilt-assuaging.  Trivializing.  Actually
dangerous.  All mothers have their breaking points.  Mother Earth does not
soften hers with patience or forgiveness or sentimentality.


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