At least one high-stakes idea for reversing the effects of global warming might not work, according to a new study.
Over the past few years, some scientists have brought up the idea of "geo-engineering" the Earth with enormous projects to mitigate some of the ill effects of climate change. Examples include building space mirrors or creating big clouds to reflect away excess heat. No one is sure how well such projects would work, however, in part because it's not easy to test them without exposing everyone involved to a lot of risk. Now, a new study of a natural mirror to one popular geo-engineering idea has shown that iron fertilization of the ocean might have only short-lived effects.
Here's how iron fertilization is supposed to work. Extra iron added to the sea is supposed to feed the growth of plant-like phytoplankton, which in turn would absorb more carbon dioxide from the air. When the phytoplankton died, they would fall to the bottom of the ocean.
Especially compared to space mirrors, iron fertilization is one of the easiest-to-implement of the geoengineering ideas. Last year, California businessman Russ George dumped more than 100 tons of iron sufate into the Pacific Ocean, in violation of two United Nations conventions, apparently without telling anyone his plans.
To study the effectiveness of iron fertilization without causing any international problems, researchers from the U.K., Norway and South Africa studied the aftermath of the 2010 eruption of the volcano Eyjafjallajökull in Iceland. Like George's dumping, the researchers found that clouds of iron from Eyjafjallajökull triggered a lush phytoplankton bloom.
The bloom soon died, however, because the plankton ran out of the nitrogen they needed. Climate News Network called the results a blow for geoengineering supporters.
The Eyjafjallajökull researchers published their work earlier this month in the journal Geophysical Research Letters.
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Yes science has clearly proved with sun cycles the environment warms with the cycles.
Yes science has clearly proved humans since the industrial revolution have negatively impacted the world environment with pollutions and global warming. Both trends continue.
Since global warming is unstoppable with the consistent world population growth and the support of it, we might as well attack the situation from a positive perspective and see how we can positively exploit global warming with growing a healthier ecology for the world from GLOBAL WARMING. Oh and yes, always try to get rid of pollution, the posision that kill the enviroment and ourselves.
@Auroria
"Oh and yes, always try to get rid of pollution, the posision that kill the enviroment and ourselves."
Who do you suggest first? Which people group?
At bagpipes,
I believe Auroria was saying to get rid of pollution. Such as the gases that form smog, which are by-products of fossil fuel burn. I don't think they were referring to people.
Bagpipes100,
Perhaps sentences could be worded better, but words like pollution are not new. The toxic produced by production of the industrial revolution is killing the environment, plants, and animals and causes medical problems or kills humans too.
There is the pollution of CO2, which helps the sun rays to warm the environment and then there all the other 1000s deadly pollution we humans produce and harm the environment as well. YES less pollution would be a great thing for the environment, even removing the toxins that do not relate to global warming, but of those that are still toxic to the environment.
No, my statement did not indicate that any groups of people are toxic.
I hope I elaborated enough for you to understand or perhaps you need a sock and puppet show, lol. What is your problem anyways? Are you for toxins and pollution being put in the environment or just a cranky old guss that likes to nitpick?
It is so common for people to argue of odd things to distract from global warming or how humans are harming the enviroment and ignore the orginal problem.
For all those who say global warming is natural and not human made, it does not take away from the fact the world population is growing and recources to take care of humanity is srinking, fresh clean water, food, homes.
www.oceansentry.org/lang-en/overfishing/campaign.html
When the oceans fish go, so will the land animals, then comes the doom across the Earth!
@auroria, it's a good thing that i have hope for where i'm going after we die since apparently we're all going to die.
really if we are finding it so hard to turn away from the industrial practices that have brought us to where we are then we should simply embrace them and use them to our advantages. move to mars and make it the solar system's big gigantic wildlife preserve.
or just move to mars where the atmosphere is already fscked and dead and do all our industry there free from the laws and regulations that our pitiful earth governments have put in place for such stupid ideals such as equality.
idk, both sides are committees and thus both sides are idiotic and blind to certain ways of thinking. we could cleanly meet our entire energy needs for the world by introducing more efficient breeder reactors and we could clean up the entire world by finding a better engineered material than plastic. the first idea is feasible and the last idea means going back to the industrial standards of the 1920's when we stored everything in glass and metal.
as for the crippling over population and rising food prices? colonizing mars would solve the overpopulation quickly but only for a time before we'd need to move on to other planets. and the added space of colonized mars would make for great farm-able land.
really you guys aren't thinking hard about this, we're all too caught up in the actual problem to try and think of an actual solution to the thing. take a step back, relax, and consider things that you never have before.
to mars or bust!
The old cloud seeding article again. Siggh, yawn... Still brings out the global warming debate. Who cares. We can't get off the freaking planet and until it litterally affects everyones dinner table we won't truly worry or do anything about it. Like the sypmtoms of a cold, we will wait until the symptoms get so bad that we have to do something about it. The human response to global warming is the same as it is for aging or getting sick: Some will be over paranoid and over-respond prematurely; Some will ignore until its so bad that its probably too late. Save your NOAH and global stats talk, its a human psychology problem that prevents us from change. Let's follow social media for the next few years and watch what people care about. Maybe we can get an inkling then what it will take to get people involved. We also need difnitive proof... like, really definitive proof. We need some serious sea level rise and some good ole fashion "trip-wire" effects to take out a few million people.
"Do not try and bend the spoon. That's impossible. Instead... only try to realize the truth. There is no spoon."
So... Even if this worked, algae blooms will eventually use up the excess nutrients, fall to the ocean floor and start sucking up oxygen and probably producing methane as they decompose anaerobically. This is just a stupid idea.
Found a lemon, made lemon aid.
Nevermind the why of the global warming, if you are confident the enviroment is going to warm for the next 25 to 100 years, etc., then plan for growth in a postive way and use this warming trend to your advantage.
Reducing pollution from the enviroment is always a good thing.
"Russ George dumped more than 100 tons of iron sulfate into the Pacific Ocean, in violation of two United Nations conventions..."
Should read:
"...may have violated the United Nations Convention on Biological Diversity." (only 1 UN convention)
The UN convention on biological diversity that some claim Russ George violated is rather fluffy. The Haida tribe paid for his project to fertilize phytoplankton to improve the food supply for their dwindling salmon runs for which there was a pretty strong scientific basis. The August 2008 eruption of a volcano on Kasatochi in the Aleutian Islands dumped iron ash on the northern Pacific, creating a large plankton bloom that dramatically increased salmon runs. Two other volcanic events are also associated with record salmon runs. Thus the iron sulfate experiment.
It seems that seeding with iron sulfate may have little impact on CO2 absorption, but it does have an impact on food supplies for fish.
So apparently Russ George's experiment, designed to improve dwindling salmon runs, is NOT in violation of the UN Biological Diversity convention since its intent is to increase salmon numbers which are below historic levels; in other words improving biological diversity. But as we've seen numerous times, the priorities of environmentalists are often perverse. They frequently manufacture pseudo-scientific rationales for opposing things like plankton fertilization or nuclear power.
CBC Investigates Former LENR Researcher Russ George
news.newenergytimes.net/2013/03/26/cbc-investigates-former-lenr-researcher-russ-george
That the plankton quickly die out without a continuous source of nutrients should not be a surprise. It is logical. Not only that, but our own satellites that track the blooms have shown for years that blooms caused by nutrient surges (such as from underwater volcanic activity or from the nutrient-rich waters that originate with the massive underwater Antarctic waterfalls) quickly die off as soon as the nutrients are removed.
Enticing plankton to grow on a massive scale to eat up some carbon dioxide would not only take massive resources to start, but those same massive resources would need to be maintained in order to keep the blooms alive. It is just not feasible.
I feel that geo-engineering is like trying to drop thousands of bombs into a hurricane and hoping that it will actually disrupt it and break it up. It won't, not even close, and might actually add to the problems.