"A
few years ago we had a disagreement with our friend Jim Brown, a
leading ecologist. We told him we thought there was about a 10
percent chance of avoiding a collapse of civilization but, because of
concern for our grandchildren and great grandchildren, we were
willing to struggle to make it 11 percent. He said his estimate of
the chance of avoiding collapse was only 1 percent, but he was
working to make it 1.1 percent. Sadly, recent trends and events make
us think Jim might have been optimistic."
When
the Ehrlichs write that you know it must be time to PANIC!
Collapse:
What’s Happening to Our Chances?
Paul
R. Ehrlich and Anne H. Ehrlich
MAHB,
16
January, 2014
It’s
been a little over a year since we tried to assess the probability
that today’s perfect storm of environmental problems will lead to a
collapse of civilization.[1] This seems an appropriate time to see
how recent events and discoveries might have changed the odds. The
trends in the main drivers of destruction continue unabated. The
Population Reference Bureau, which in 2012 projected that the world
population in 2050 would be 9.624 billion people, foresaw in 2013 a
2050 population of 9.727 billion, resulting from a slight rise in the
global total fertility rate. There is little sign of consumption
abating, with purchasing power increasing on average globally (but
with great geographic differences). There is growing evidence that
anthropogenic climate change is not only raising the global average
temperature but also increasing the probability of extreme weather
events. The latter have been especially destructive in portions of
America’s “breadbasket,” essential to maintaining human food
supplies. Even more worrying, there seems to be an escalating
discovery of positive feedbacks such as the melting away of arctic
sea ice, which decreases reflectivity and thus accelerates warming
while ironically causing nasty blizzards in the northern United
States. Warming also leads to even more warming by increasing the
flux of the greenhouse gas methane into the atmosphere as permafrost
thaws and possibly as methane clathrates (complexes of ice and
methane underlying northern oceans) disintegrate as the oceans warm.
More positive feedbacks are clearly reducing the odds of keeping
climate disruption within “manageable” limits (if such have not
already been passed).
Recent
analyses of the climate and agricultural situations[2] paint an
ever-darkening picture. Indeed, there is building evidence of a
likely failure to produce increases in crop yields that would be
needed to feed 9 billion people in 2045, even if climate disruption
doesn’t clobber agriculture. There also are more and inevitably
growing problems besetting efforts to obtain the mineral resources
needed by industrial civilization.
Finally,
there are signs that major powers, especially the United States,
China, and Russia, are increasingly competing over resources in ways
that could lead to major wars, possibly nuclear. Much of the
competition in a disintegrating Middle East is related to access to
oil, use of which for energy mobilization and plastic manufacture we
would be phasing out if society were moving toward sustainability.
The international situation, as historian Margaret MacMillan has
pointed out, bears a frightening resemblance to that which preceded
World War One.[3] We are ending a long period without world wars but
characterized by unprecedented technological changes that
environmental/resource problems are going to make even less
understandable. As globalization continues in a situation of
intensifying resource competition, reactionary movements held
together by new technologies, and lack of trust are rampant in a
world still structured into nation states with only weak mechanisms
available to deal with global threats. The building military
confrontation between China and the United States could end in making
all environmental issues moot.
There
is some good news. Total energy consumption in the United States has
been declining under President Obama because of steady increases in
efficiency, especially in vehicles. U.S. coal consumption has been
going down because electricity generation has been flat and coal’s
role in it has been diminished by being replaced by natural gas
(which, even after accounting for fugitive emissions in production
and transport, remains much better than coal in terms of climate
change). Of course, this only makes sense as a temporary “bridge”
to a much lower carbon mix. U.S. oil production is up, but that may
be a short-lived reprieve. Even so, burning domestic oil is better
both economically and environmentally than burning imported oil. And
although Australia is eager to continue exporting gigantic amounts of
coal at huge cost to Australia’s environment and to that of the
world, the Chinese government is moving rapidly toward a reduction of
coal use, and India is being forced in that direction by finances.
There
is also a heartening spread of solar technology in poor countries,
among other things giving many more people access to modern
communications (which, of course can be used for either good or
ill!). “No-take” zones (areas where fishing is prohibited) have
shown an amazing capacity to regenerate neighboring fisheries. But
sadly, the zones cannot control pollution, acidification, or
temperature change and thus may rapidly lose their value. Brazil has
greatly slowed deforestation in the Amazon with a combination of
sound policies and good enforcement of them. And the population
prospects for the United States are slightly less grim: the 2012
projection for 2050 of 422.6 million dropped in 2013 to a projection
of 399.8.
But
what is crystal clear is that these changes are not remotely big or
fast enough to make a real dent in the problem. Furthermore, there
are no plans nor any tendency toward making the most crucial move
required to lessen the odds of a collapse: a rapid but humane effort
to reduce the scale of the entire human enterprise by ending
population growth, starting the badly needed overall decline in
numbers, and dramatically curtailing consumption by the rich. There
is not even discussion about the obvious elements of the
socio-economic system that support a structure embedding a need for
perpetual growth – fractional-reserve banking being a classic
target that requires investigation in this context. Virtually every
politician and public economist still unquestioningly assumes there
are benefits to further economic expansion, even among the rich.
They think the disease is the cure.
A
few years ago we had a disagreement with our friend Jim Brown, a
leading ecologist. We told him we thought there was about a 10
percent chance of avoiding a collapse of civilization but, because of
concern for our grandchildren and great grandchildren, we were
willing to struggle to make it 11 percent. He said his estimate of
the chance of avoiding collapse was only 1 percent, but he was
working to make it 1.1 percent. Sadly, recent trends and events make
us think Jim might have been optimistic. Perhaps now it’s time to
talk about preparing for some form of collapse soon, hopefully to
make a relatively soft “landing.” That could be the only thing
that might preserve Earth’s capacity to support Homo sapiens in a
post-apocalyptic future.
[1]
Ehrlich PR, Ehrlich AH. 2013. Can a collapse of civilization be
avoided? Proceedings of the Royal Society B
http://rspb.royalsocietypublishing.org/content/280/1754/20122845.
[2]
http://vimeo.com/78610016;
http://www.youtube.com/watch?v=TFyTSiCXWEE; Grassini P, Eskridge KM,
Cassman KG. 2013. Distinguishing between yield advances and yield
plateaus in historical crop production trends. Nature Communications
4:2918 | DOI: 10.1038/ncomms3918
|www.nature.com/naturecommunications.
[3] http://bit.ly/K4rf8G
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