Activists like Vice President Al Gore are encouraging a massive
shift in human behavior to reduce greenhouse gas emissions and
reverse the trend in global mean surface temperature in order to
rescue humans and some of our favorite species from the unsavory
side effects of further-increasing temperatures. In other
words, what was an inadvertant effect on the global climate would
become an intentional attempt at global climate management.
I am left with the following question: how can we know when to
stop?
The question can be phrased in other ways. For instance,
what is the optimal global mean surface temperature, and how do
we decide that temperature? Also, what are the optimal
atmospheric concentrations of various greenhouse gasses?
There are an enormous number of variables and interests which
must be considered in such a determination. But it seems to
me that such determinations must be made if we are to begin
managing the global climate.
Allow me to present a hypothetical: Say that humans are somehow
able to drastically limit emissions of greenhouse gasses, lower
atmospheric concentrations thereof, and facilitate a drop in
global mean surface temperature. Now, imagine that the
downward trend in temperature continues past where we
anticipated. The planet might enter in to a period of
cooling which would be just as harmful to humans and our favorite
species as global warming, just in different ways. What
should be done then?
You have to really identify the goals first. Not sure how other
people think, but I am both pro clean environment, alternative
energy in all the forms, decentalized economics to build the
middle class the most, and anti big huge conjobs and scams, and
when I first started reading about a "new" multi
trillion dollar potential "trading market" called
"cap and trade" I smelled a big fat herd of rats.
I am not convinced yet this ultra rich "they" guy is
more convinced we need to save the world or just make a ton of
scratch off some effort. And it is because if you are going to
use economics and social engineering and laws to bring about
change, a pure carrot approach works across the board at any
scale, just drop any associated and sundry taxes that have to do
with achieving the goal, and allow a credit for actually buying
the stuff. That's it, pure tax credits or "instant
rebates". works from transnationals on down, joe single
homeowner on up.
You want to see a lot less co2 and get rid of coal burning and
petroleum burning, drop any taxes on the alternatives, and offer
some dang reasonable credits that are worthwhile and have a carry
on provision for say like ten years minimum. Keep it just like it
was with the original sources, you don't need to change a
thing there.. People from the single shareholder on up back to
the transnationals will insist their "company" takes
advantage of what is the desired outcome. Individual homeowners
will go "wow, free stuff, sign me up!" and you'll
see a billion solar panels within a few years, drivers will go
"wow, a new free car!" and a variety of electric cars
will be out there shortly without any excuses or BS from the big
car companies, and the environment gets cleaner real soon, and if
it helps with climate moderation, good deal. So, where to stop?
Right now, directly abandon the "new" middleman
skimming effort cap and trade "market" being foisted on
the global economy. Look at the other markets, they look pretty
rigged and stupid and lopsided to me and sure aren't doing
the consumer much good at all. In all the papers lately and
stuff, they are starting to *sweat* profusely. Because
rearranging wealth makes NO new wealth, it just diltes what is
there. It is so diluted now and theoretically into future it is
bankrupt, just they don't want to say that out loud, because
it would lead to a global "heads on pikes" scenario.
They make a few people a LOT of money at the expense of most
people. I'd like to pass on any more schemes like that right
now...
Now if you mean global terraforming, as much as I love science
and engineering them boys aint' got all the answers yet, I
think they are starting to ask a bit more intelligent questions,
and I *distinctly* remember some wild scheme they were going to
pull or wanted to pull back in the "global cooling, new ice
age" coming days, and that was spread soot over the entire
arctic ice to melt it. I am not kidding that was one plan being
pushed as an emergency massive multinational effort, cover the
arctic with carbon black of some sort to reduce albedo and have
it absorb heat. Now, aren't we glad we didn't do that
then? Spray all sorts of stuff in the atmosphere, make global
artificial clouds? Seed the ocean with [chemical of the day]? Set
off nukes in the upper atmosphere because..that one I am not sure
about. Build huge mirrors in space? (that's still a death ray
scheme if you ask me..) All sorts of wild stuff. and that's
it, it is *wild* stuff.
I say, let the UN and all the "cap and trade" folks
pick one small area of the planet that is really totally screwed
up environmentally-wise, turn loose all their scientists and
traders on it, see if they can make it pretty close to perfect,
just like I want to see the US Federal government make one metro
area-DC-the standout "nice" place in the US with the
least but most efficient government and the best living
conditions for the least money for the most people and lowest
crime rate and so on and so forth. I *dare* them to do that..
when they can do that, I might believe them better. When we can
go a long time and not see a lot of "market" panic
because they run things just so gosh garn smoothly and fairly I
might believe them on another "market" they want to
open up. And along those lines.
I want to see some more credible "put up or shut up"
actions, not just advice or coming soon or aw heck, looks like we
need 50 more laws that are going to cost you extra and get
involved in a war on carbon and carbon based life forms-us and
the planet- that will be run by the same guys who brought you the
war on some drugs and war on some poverty and war on some tarism
and on this or that. I don't need any more of their wars
fought on my behalf, including a war on carbon.
The best approximation of the best common-sense notion of hiding
our impact from the environment (judged by direct observation,
gut feel, a little bit of science but not too much) -- the best
of that we can muster, yeah. At least to "get our
bearings," climatologically speaking. Premature large-scale
outcomes of macro-climate-control have as their most probable
outcome among desirable options (imo) a situation in which
control is perfected but over an overall less-desirable range of
parameters. That is, we'd have a control range that goes from
"crappy but survivable environment" to "even more
crappy but survivable environment" and a complete loss of
"desirable".
(This makes no bet, though, that any desirable outcome is
more probable than a loosing outcome (we thrash the
macro-environment for a few years and then all die).)
"Calming" industrial and consumer outputs cools the
game, considerably. The uncertainty of our influence is itself
alone enough to make a priority out of backing off and trying to
see where we really are.
That the same push to zero-net emissions and sustainability
generally would also result in a more stable macro-economic
environment, should the push succeed, why, perhaps that's
just a Huge Clue about what we ought to be doing.
The same result is obtained if you just think in terms of
resonance and say that it's a bad idea to put huge amounts of
coherent energy into the world in the form of climate-significant
emissions and impacts. A good reason to not extract and
atmospherically dump so much carbon, for example, is that to do
so is so "loud" a coherent signal -- of geologic scale.
As a society, we should feel vulnerably exposed by having
recently been that loud and, yeah, "make like we're not
really here" would be the natural response to that
recognition.
Nathan Smith is right to ask these questions. In recent
times, cultural world views (forgive the clumsy generalisation)
have shifted from entirely human-centric to another
extreme. We once believed that we were the centre and
purpose of God's creation. We now believe that we are
not only insignificant in the universe, but a localised threat.
Frankly, I consider this teenage angst. We need to get over
it. We are what we are, and we best look after
ourselves. We are self-aware, and we are becoming aware of
our planet.
I guess if we act like we're not here, that should be
enough...
No, whether we have a "right" to be here and alter our
environment depends on your view of universal ethics. But I
think that organisms which fight for their own survival will have
a much better track-record than those which condemn themselves
for existing.
Our first steps should be modest. Reducing pollution and
human activity greenhouse gas emissions is reasonable. Yes,
unexpected consequences are always possible. But at least
lower levels of emissions has been tried before. Until we observe
a measurable effect from this action, other modeling is
interesting, but highly speculative.
Now if someone suggested capping the volcanos, then I'd get
nervous.
To answer the question, the optimum environment is the one that
suits us. Venus may like being at 700K, but we liked it how
it was in the summer of '69. In other words, we like
the climate that is tried and tested. Perhaps humans will
have the technology to manage and significantly ease what would
have been the next global ice-age or hot period.
Perhaps the single most important thing we can do to wisely
manage the environment, is maintain a strong economy. Money
== choice.
Exactly my point, if we act like we're not here, we won't
be. The next best thing would be to live like animals; that would
probably balance things out, but nobody is going to go for that.
So, we'll have to think things through a bit. My thought is
that we have to quickly learn to think in terms of closed loops,
total recycling, minimal impact or return to original state where
natural resource disturbance is concerned, and in the end a grand
plan to reduce the population (by attrition and reduced
birthrate) to something that is sustainable. Good luck with that,
but I think it's the only viable answer as the load must be
matched to the resources.
I think humans are dreaming if they think they can
drastically alter the climate of the
planet. At local levels some changes can/have be made
ie. the reduction of
pollutants from domestic/industrial coal/wood fires. Stopping the
use of freon gases in domestic/industrial refrigeration that
damage the ozone layer. The recycling of
domestic/industrial waste has been happening for years. The
planting of thousands of trees has been going on for many years.
The conservation of wetlands has also been happening for many
years and attempts at preserving/saving some species of
animals/fish/insects etc. has also been going on for many years.
Humans have been trying to preserve and clean up their backyard
for a long time. To stop/prevent cyclic climate change of the
planet is wishful thinking. The best we can do is to try and find
less polluting forms of energy, keep our back yard clean, and be
prepared to adapt to the natural climate changes of the planet.
I don't think the issue should revolve around the
temperature. The issue should revolve around the contents
of the atmosphere. That is, when we can bring
this chart of CO2 levels back down to
pre-industrial-revolution levels, then we can stop worrying about
CO2 levels.
Of course that is not the only greenhouse gas. We would have to
do the same with the others as well.
On Climate Management
Activists like Vice President Al Gore are encouraging a massive shift in human behavior to reduce greenhouse gas emissions and reverse the trend in global mean surface temperature in order to rescue humans and some of our favorite species from the unsavory side effects of further-increasing temperatures. In other words, what was an inadvertant effect on the global climate would become an intentional attempt at global climate management. I am left with the following question: how can we know when to stop?
The question can be phrased in other ways. For instance, what is the optimal global mean surface temperature, and how do we decide that temperature? Also, what are the optimal atmospheric concentrations of various greenhouse gasses? There are an enormous number of variables and interests which must be considered in such a determination. But it seems to me that such determinations must be made if we are to begin managing the global climate.
Allow me to present a hypothetical: Say that humans are somehow able to drastically limit emissions of greenhouse gasses, lower atmospheric concentrations thereof, and facilitate a drop in global mean surface temperature. Now, imagine that the downward trend in temperature continues past where we anticipated. The planet might enter in to a period of cooling which would be just as harmful to humans and our favorite species as global warming, just in different ways. What should be done then?