Traditionally, cloud seeding has involved dropping a vapor into the clouds (usually silver iodide) that's designed to bond with the water, making it heavier and creating rain or snow. But this ground-based generator is designed to spray upwards into the clouds. According to the Associated Press, many people believe the U.S. is falling behind in the cloud-seeding arms race:

Government agencies and utilities from California to North Dakota spend an estimated $15 million a year on cloud seeding, and the number of projects has jumped by nearly a third in the last decade.

But spending in the United States is far lower than in many other countries. China spends an estimated $100 million a year on cloud-seeding efforts that include using anti-aircraft guns and rocket launchers to blast the sky with silver iodide.

"What's going on in the U.S. is tiny," said Arlen Huggins, an associate research scientist at the Desert Research Institute in Reno, Nev. "There's more being done outside the U.S. than here."

Other countries conducting cloud-seeding research include Australia, France, Greece, Saudi Arabia, Turkey and Venezuela.

But the National Research Council reported in 2003 that there's no evidence this technique actually works. At the same time, scientists involved in the report say more study and research are needed, and utilities like Pacific Gas & Electric have been doing cloud-seeding for years, saying they've seen an increase in precipitation as a result. (PG&E uses snowmelt in turbine-power plants.)

Another question: whether silver iodide, the chemical used to make water heavier, is safe. Residents of one area where PG&E wants to install seven 20-feet-tall generators are raising questions — but the charmingly named Weather Modification Association insists it's perfectly safe. I love the fact that there's an interest group called the Weather Modification Association.

So with clean water growing scarcer and more precious, are we going to lose the weather-control race before we even know it's happening? And is water laced with silver iodide still considered "clean water"?

Image by AP. [Associated Press]

Balog was just written up in the Wall Street Journal for his Extreme Ice Survey, which involves a mix of mountaineering and nature photography to capture the effects of global warming. Balog explains:

Q: How did you come up with the idea for "Extreme Ice Survey"?

A: The New Yorker asked me to shoot a story on climate change in 2005, and I wound up going to Iceland to shoot a glacier. The real story wasn't the beautiful white top. It ended up being at the terminus of the glacier where it's dying. That idea gestated in my mind for a year and eventually turned into the "Extreme Ice Survey" in 2006.

Q: How do images of glaciers collapsing bring the idea of climate change home?

A: There were a lot of repeat photos that showed glaciers retreating over a hundred years. That's pretty abstract. I wanted to show a shorter term time lapse that would make people think, "My god, little Emily was in first grade in April and she's in second grade in October. I remember this. It's happening in my life."

The EIS photos are arresting and heartbreaking — they show the icebergs breaking off from the glaciers and going out to sea, and in one case you can actually see an iceberg on a beach where surf and sand meet the deaths of the icecaps. There are some utterly lovely pictures of "meltwater" floating on top of the ice, as well as some disgusting images showing the silt-befouled water encroaching on the ice, over the past few years.

But meanwhile, Balog's site also has a section called "Techno Sapiens" which celebrates the cyborgs in our midst, including gorgeous looking artificial limbs and wearable computers. Back in 1996, Balog talked to Fortune Magazine about it:

On the following pages, photographer James Balog documents what he calls Techno sapiens: fusions of humans and machines that can be found today in American research labs and hospitals, and even on the streets. Add up the images, says Balog, and it's not hard to envision a race of flesh-and-technology beings with electric hands, legs of steel that run a two-minute mile, and perceptual powers unknown in nature. "Imagine you are a traveler from another galaxy," Balog says. "You land in North America today and look around carefully, with fresh eyes. This is what you might see."

It's an interesting contrast, but maybe not a contradiction: He worries what we're doing to the planet, but he's also celebrated the way we're transforming ourselves.

There are tons more photos at the links. [Extreme Ice Survey and James Balog Photography]

Icebergs 200 feet tall, formerly part of the Greenland Ice Sheet, float into the North Atlantic Ocean, raising sea levels as they melt.

Jökulsárlón, Iceland. Decaying ice and icebergs on the surface of the Jökulsárlón in southeast Iceland. The ice drains off the great icecap called the Vatnajökull.

Columbia Glacier, Alaska. Columbia Glacier calves icebergs into Columbia Bay west of Valdez, Alaska. The ice shown in the bergs was deposited in snowstorms 300 to 500 years ago.

Columbia Glacier, Alaska. Contrasts between clean glacial melt water and water laden with eroded silt color these lakes on the surface of the East Fork of Columbia Glacier. Black stripes are erosional debris called "moraines."

Svínafellsjökull Glacier, Iceland. An EIS team member provides scale in a massive landscape of crevasses on the Svínafellsjökull Glacier in Iceland.

Greenland Ice Sheet, Greenland. On the surface of the Greenland Ice Sheet east of Kangerlussuaq, a meltwater stream known by the French word "moulin" (in English it means "mill," as in windmill).

Icebergs calved from Whiteout Glacier, Alaska.

River water and seawater polish the surface of a berg in Iceland.

Meltwater on surface of Columbia Glacier, Columbia Bay, Alaska.

Decaying ice and icebergs on the surface of the Jökulsárlón in southeast Iceland. The ice drains off the great icecap called the Vatnajokull.

Meltwater on surface of Columbia Glacier, Columbia Bay, Alaska.

Kenny's Arm

Breathing Observation Bubble

Wearable computer

1: Pump the atmosphere full of nanomachines to get "smart weather."

In Century Rain by Alastair Reynolds, people seed the oceans and the upper atmosphere with tons of tiny floating machines, "invisible to the eye, harmless to people." They controlled the weather and fixed the climate by reflecting radiation here or absorbing it there. The machines made clouds appear and disappear and controlled ocean currents. And it works — for a while. The climate starts returning to pre-2050 conditions. But then the nanomachines stop obeying orders, and even create an obscene symbol off the Bay Of Biscay "that had to be airbrushed out of every satellite image." The scientists try to release even smarter nanomachines to deal with the first batch of nanomachines and — well, you can guess how well that turns out.

2: A ring of ice.

In the Stanislaw Lem novel Fiasco, scientists launch an artificial ring of ice into the atmosphere of the planet Quinta to reduce temperatures so the oceans will recede and more land mass will be available. The mass of the ice ring is equal to around 1 percent of the oceans' volume. The protagonists speculate that the ring was created by causing lightning in the upper atmosphere to create a kind of ice rail-gun that could shoot the ice up into orbit. This being a Stanislaw Lem novel, the whole thing falls apart due to political wrangling before it can be completed, so huge chunks of ice rain down onto the planet's equator in a never-ending torrent.

3: Use special bacteria.

In the story "Noah's Ark" by Narendra Desirazu, we find bacteria on Mars, with bizarre properties — it hibernates just below the freezing point of water, but when the water melts, the bacteria goes into frantic activity to get the water to refreeze. So scientists struggle with the effort to introduce the bacteria only to the icecaps and other areas where they want to reverse melting — without letting it get into, say, our oceans and stuff. Luckily, there's a happy but "ambivalent" ending.

4: Build a giant sunshade around the Earth.

We build huge space elevators and a massive sunshade in The Night Sessions by Ken MacLeod, causing the dawn light to look all trippy:

The dawn sky glowed innumerable shades of green, from lemon to duck-egg to almost blue, like the background colour in a Hindu painting, and turned slowly to a pure deep blue over ten minutes or more as he watched. He dozed again.

Also, Arthur C. Clarke's Fountains Of Paradise includes a ring of satellites and space stations linked together around a planet's equator by cables and other connectors, which becomes an unbroken wheel of tremendous stability — which presumably can reflect a lot of sunlight. And in Clarke's Childhood's End, the Overlords are able to use polarized fields to "make the sun go out" for a particular region of South Africa, to punish the residents for depriving the white minority of civil rights. And in Venus Of Dreams by Pamela Sargent, colonists cool the planet Venus by using a giant Parasol to shade the planet, plus bombarding the planet with ice asteroids.

5: Take Earth further away from the sun.

The Futurama episode "Crimes Of The Hot" is like a smorgasbord of global-warming solutions. We learn that humans stopped global warming in the 21st century by bombarding the oceans with ice from space. And now that the planet is heating up again, due to the emissions from unsafe robots, there are a few solutions, including a giant space mirror (which goes awry) and shutting down all the robots. But in the end, the easiest solution is to have all the robots emit their exhaust at once, sending the planet further away from the sun — and giving us an extra week in each year, which can be Robot Party Week!

And in the novel The Circle: A Science Fiction Thriller by Harold R. Watson, the High Rulers Of Earth decide to haul the planet away from the sun to put it into a deep freeze for one year. At the end of that time, they'll return Earth to its original orbit. As some of the planet's icy covering melts, it'll have the effect of restoring the ozone layer, and after about five years, enough vegetation will have grown to make the planet habitable again. Suuuure.

6: Hack The Human Genome

It's a radical solution, but it might be the only way. In the story "Dear Abbey" by Terry Bisson, a group of radical environmentalists come up with a plan:

Dear Abbey is a radical, long-range plan for saving the environment that will make Ted Kaczynski look like Mother Teresa. It involves an alarmingly complex but theoretically possible piece of genetic engineering that will, let us say, severely inhibit the ability of humans to degrade the environment. Severe being the operative modifier. You can't call it terrorism because no one will be killed, directly at least, and no one will even know for sure what is happening until it has been operating for at least a decade, by which time it will be too late to undo it. The human cost will be high but not nearly as high as the cost of doing nothing, or of simply continuing with the kind of pointless stunts for which the environmental movement is known.

7: Restart the Gulf Stream

Kim Stanley Robinson is the champion of depicting environmental disasters and geo-hacking projects, and his environmental thrillers Forty Signs Of Rain and Fifty Degrees Below deal with the disastrous effects of global warming. Among other things, Fifty Degrees includes scientists trying to restart the stalled Gulf Stream. The ice caps melt completely, and in the winter, Washington, D.C. hits fifty degrees below. So an enormous fleet of ships ventures out to dump millions of tons of ice into the ocean in the hopes of rebooting the Gulf Stream. A fleet of 3,500 oil tankers is available to transport the salt, and five hundred million metric tons of salt is needed — about two years' worth of total world production.

8: Shut down all our technology

I'm still not entirely sure what happened at the end of last year's "remake" (quotation marks are necessary here) of The Day The Earth Stood Still. Keanu/Klaatu was going to unleash nanomachines to disassemble everything on Earth, because that would save the planet. You know that makes sense! And then he changed his mind and did some kind of EMP-ish thing that made all electricity go out and all technology stop working. So the human race was allowed to survive, but with no technology. Keanu is merciful! All hail Keanu!

9: Open a big hole.

Global warming? No problem! Just open a dimensional gateway and pump all the extra heat somewhere else. That's the scheme that a science whiz comes up with in the Stargate Atlantis episode "Brain Storm" (featuring Bill Nye the Science Guy, among other luminaries.) Of course, it all goes horribly wrong and the gathering of eminent scientists is in danger of freezing to death.


Also, in the Syfy movie Lost City Raiders, the world is flooded due to global warming. And the Catholic Church has the answer — an ancient hole in the ground, which will drain off all the excess water to... somewhere. But you need to find the secret hidden keys to open it. It all makes perfect sense!

10: Kill the aliens who are causing the problem in the first place.

But of course, you know deep down that global warming can't really be the result of our own completely harmless activities. There must be aliens behind it — probably evil dinosaur aliens. In the Syfy original TV movie, Heatstroke, it turns out that dinosaur people have been secretly working to pump out greenhouse gases to raise our planet's temperature and prepare the way for their invasion. But the U.S. government knows about this and sends a secret taskforce (why not a whole army? Budget constraints, I guess) to stop them. The aliens are operating on a tropical island, where an ex-swimsuit model just happens to be shooting a new calendar. It's like synergy! Oh, and there's also The Arrival directed by David Twohy, where Charlie Sheen discovers that weird double-jointed aliens are producing greenhouse gases to mess us up and transform our planet. Good thing it's Charlie Sheen, then.


Oh, and the Silurians in Doctor Who And The Silurians also have a similar idea about raising the planet's temperature, but they don't get very far with it.

Additional reporting by Alexis Brown. This post also would have been a lot harder to write without the never-ending awesomeness that is Technovelgy.com.

How does the carbon-collecting strategy work? A release from Georgia Tech says:

Georgia Tech's near-future strategy involves capturing carbon emissions from conventional (fossil) liquid hydrocarbon-fueled vehicles with an onboard fuel processor designed to separate the hydrogen in the fuel from the carbon. Hydrogen is then used to power the vehicle, while the carbon is stored on board the vehicle in a liquid form until it is disposed at a refueling station. It is then transported to a centralized site to be sequestered in a permanent location currently under investigation by scientists, such as geological formations, under the oceans or in solid carbonate form. In the long-term strategy, the carbon dioxide will be recycled forming a closed-loop system, involving synthesis of high energy density liquid fuel suitable for the transportation sector.

Carbon-capture strategy could lead to emission-free cars [Georgia Tech]