Feb 26, 2011
I emphasize the solution is not mine
But I asked a proffesional what he thought about the idea of blanketing the earth- Name Don Herbison Evans- who makes a hobby of knowing about a lot of things and is aretired academic also a highly trained in several Sciences and at least one Art
Quote in full
>You can publish the following amended email
>Note the more optimistic estimate of 50 yrs to spread the dust.
>I made an arithmetic error before.
>By the way, I am a Chartered Engineer (UK).
>>Dont knock it just because it is "geoengineering"..
>>if you want to reduce global warming then that is geoengineering
>>Julia putting a price on carbon is geoengineering.
>>You can have too much or too little of anything.
>>The problem is getting just enough to do the job required.
>>That is what engineers do.
>>An engineer is someone who can build a bridge for
>>1 million dollars that any fool could build for 10 million dollars..
>>Krakatoa caused brief global cooling
>>by putting a mineral dust layer into the upper atmosphere.
>>Sadly it cut visible light as well as infrared,
>>so a sustained period of it would kill plants, then animals, then maybe us.
>>The proposal is to put special mineral dust in the upper atmosphere
>>that only reflects infrared but not visible light,
>>so earth is cooled but plants can live.
>>Krakatoa put about 20 cubic kilometres of rock into the atmosphere.
>>Maybe 5% of that stayed in the upper atmosphere.
>>That would be about 1 billion cubic metres.
>>and weigh about 5 billion tonnes.
>>This would supply a virtual reflective blanket around the earth
>>1 micron (1 millionth of a metre) thick.
>>It suggested using commercial airliners to spread the mineral dust.
>>Global air travel does about 10 billion kms/year
>>A 747 has a payload of about 100 tonnes,
>>and an average trip length of about 1000 kms.
>>Maybe they take 10% of this 100 tonnes as charity to cure global warming
>>So at this rate it would take 50 years to spread the amount of dust needed.
>>That might be too expensive and too late.
>>Nice idea though.
>>Maybe Mauna Loa Volcano, Hawaii
>>will blow and solve the whole problem.
>>Keep a torch by your bed.
>>Actually we dont need plants and animals.
>>Food can be synthesised chemically from carbon dioxide, nitrogen, water, and
>>It would need a substantial industrial plant to make enough for a billion people,
>>and would use a lot of energy, and need lots of extra coal/gas/uranium fuelled
>>but it is chemically quite easy, just very expensive, and take years to set up.
>>It is probably cheaper to grow algae like chlorella under artificial light.
>>We could all build tanks for it in our backyards.
Content and comments expressed here are the opinions of Care2 users and not necessarily that of Care2.com or its affiliates.
Shares by Type:
| Alert (4)
| Message (9)
Showing shares tagged with:
, globe more
|SHARES FROM PENELOPE'S NETWORK
ZEN was suspended by Eric
with no warning. We don't
know any reasons nor how
long it will last....
I asked about it on the
forum but my post was
immediately deleted. 2
threads and petitions
about Zen also. And 2 her
Untill today no...
"I've learned not to
worry about love, but to
honor its coming with all
my heart. ~ Alice Walker"
just found this group and
in case no one in it has
been to care2 recently
they now let you donate
to save rainforest land
hundred credits to
rainforests is one of the
most important things we
In a special two hour
episode of "Spinning
Tales From All Walks of
Life", Brother Lefty
Smith, S.O.B.* joins host
Michael Pollitt on WMCB
to share two hours of
songs and stories about
his journey as an
Unrepentant Peacenik and
Zen Whisperingtree has
been suspended from
Care2, in my opinion
unjustly, for criticizing
the Support staff.
Although her profile page
has been deleted/blocked,
her sharebook is so far
still available at
We declare that no man
nor nation nor race have
a greater right than
others to enjoy the
fruits of their work, as
the ecological sphere is
our common condition of
carbon markets are to be
given an automatic
allowing at least 100
million carbon allowances
– or 12% of the
market – to be
withheld or released to
buoy prices, according...