By SETH BORENSTEIN

WASHINGTON (AP) — The president's new science adviser said Wednesday that global warming is so dire, the Obama administration is discussing radical technologies to cool Earth's air. John Holdren told The Associated Press in his first interview since being confirmed last month that the idea of geoengineering the climate is being discussed.

One such extreme option includes shooting pollution particles into the upper atmosphere to reflect the sun's rays. Holdren said such an experimental measure would only be used as a last resort.

"It's got to be looked at," he said. "We don't have the luxury of taking any approach off the table."

Holdren outlined several "tipping points" involving global warming that could be fast approaching. Once such milestones are reached, such as complete loss of summer sea ice in the Arctic, it increases chances of "really intolerable consequences," he said.

Twice in a half-hour interview, Holdren compared global warming to being "in a car with bad brakes driving toward a cliff in the fog."

At first, Holdren characterized the potential need to technologically tinker with the climate as just his personal view. However, he went on to say he has raised it in administration discussions.

Holdren, a 65-year-old physicist, is far from alone in taking geoengineering more seriously. The National Academy of Science is making climate tinkering the subject of its first workshop in its new multidiscipline climate challenges program. The British parliament has also discussed the idea.

The American Meteorological Society is crafting a policy statement on geoengineering that says "it is prudent to consider geoengineering's potential, to understand its limits and to avoid rash deployment."

Last week, Princeton scientist Robert Socolow told the National Academy that geoengineering should be an available option in case climate worsens dramatically.

But Holdren noted that shooting particles into the air — making an artificial volcano as one Nobel laureate has suggested — could have grave side effects and would not completely solve all the problems from soaring greenhouse gas emissions. So such actions could not be taken lightly, he said.

Still, "we might get desperate enough to want to use it," he added.

Another geoengineering option he mentioned was the use of so-called artificial trees to suck carbon dioxide — the chief human-caused greenhouse gas — out of the air and store it. At first that seemed prohibitively expensive, but a re-examination of the approach shows it might be less costly, he said.

I saw this article and I thought the same thing that you did. They are telling us what they are already doing, not what they are thinking of doing. Maybe they are planning to publicly reveal the chemtrail program someday.

Ya.. Thats interesting (( Smiles ))

They are telling us what they are doing with their so called geoengineering leading us down to a path of destruction.
All in the name of saving the planet which people will rally around of course and cheer for while they continue on to ruin the planet..
They can do about anything they want and tell us about it in the name of saving mother earth and even if it was inhaling and swallowing poison by the cupfull..

If they said it's all being done to save planet earth people will drink of it willingly.
Like being in a car with bad brakes driving toward a cliff in the fog..
Good description..
Thats exactly what it is like and they know it's going to worsen dramatically.
They are just prepareing us for the inevitable of things to come.

I can hear the screams of people right now..
We want MORE mercury and pollution to SAVE the planet.
And when do we want it.. NOW..
We all die but planet survives..
Maybe.
Their odds really suck as I guess we need artifical tree's to replace the ones dieing off now days.
It doesn't look good..
Does it.

Take Care
Lynn

I just found out there is mercury in HFCS which is in like everything! There is no where to hide it seems Lynn!

The "going-public" of chemtrails is exactly like the wiretapping laws. They were actually passed in the mid-90's, but you didn't hear anything about it until the past several years.

This is how they work.

Hi Mage, ((( Smiles )))

Yes.. It's worse then I thought it was long ago when..
I was just angry about the mercury ect in the shots and my childrens autism.
Livid...
I felt deceived back then but that was only a part of whats going on in this world.
It just keeps getting worse and to know someday all this will end..
They won't be able to do this to us forever.
Is a good thing but right now it makes chelateing hard.
Trying to get the mercury out and they admit it's blowing all over the planet.
Well it's not a full admission they don't tell all.
We'll just have to do they best we can we'll just have to wait it out.
Sorry about what your going through.
Lots of people going through a hard time in this world as it is right now.
It sure is an eye opener and thats probably why God allows it.
So thoses who don't see will eventually see it for what it is.
It all comes down to makeing a choice.
To us this seems like forever & to God this is just for a short time.
To wake people up thoses who will see..
Like a wake up call but it sure is hard to see this happening in the world for sure.

Try to stay well
Lynn

I agree, people are waking up...
something I've been waiting for since I was a child.

I just hoped it didn't have to come to this