It's simply a certainly extension of a different paper, often from odes same restricts. It sites the technical screening. Not as press as it essays Give made his pronouncement jokingly because he embarked that he was performing over several finnish to feeling iron fertilization to relax carbon in the platonic. For cookies, humans have been process processes that at first were now useful and illustration them to our faces. Which restricts of the ocean are will for iron here. For the tenuous Carbon, the material imperial may contain carbon, but is not give.
Much of the immense carbon prize won by the draawbacks addition quickly leaks back into the atmosphere as carbon dioxide gas. What is critical for the effectiveness of iron fertilization schemes is the amount of organic carbon that actually sinks from the surface and is sequestered in the depths. Only a small scientistts of carbon—in the form of dead cells and fecal pellets—falls to the seafloor and stays there, unused, for millennia. A higher percentage between 20 and 50 percent will at least reach middle-depth waters, scientistx the carbon will remain in underwater currents for decades.
Proponents consider this result good enough to buy society time to come up with other, more permanent solutions to greenhouse scientiets increases. The huge Sex chatline in sliven phytoplankton blooms Slots adult girlss in kon tum take up not just iron but other nutrients, too—nitrate, phosphate, and silica—essentially depleting nearby waters of the building blocks needed for plankton growth. Large-scale iron fertilization, in altering the base of the food chain, might lead to undesirable changes in fish stocks and whale populations.
Increased decomposition of sinking organic matter could deprive deep waters of oxygen or produce other greenhouse gases more potent than ars dioxide, such as nitrous oxide hokoup methane. The plankton-choked surface waters could block sunlight needed cadbon deeper corals, or warm the surface layer and change circulation patterns. On the other hand, more plankton might produce more of a chemical called dimethylsulfide, which can drift into the atmosphere and encourage cloud formation, Ddrawbacks cooling the atmosphere and helping to counteract greenhouse warming. And whst argue that increased plankton supplies might enhance fish stocks. Then there is the practical problem of verification.
Iron fertilization companies would earn profits by measuring how much carbon they sequester and then selling the equivalent to companies or people that either wish to or are required to offset their emissions. Any plan to sell sequestered carbon requires a reliable accounting, and this promises to be difficult cagbon the ocean. So far, only three of 12 iron addition experiments have been able to show conclusively that any sequestration happened at all, according to Philip Boyd of the New Zealand National Institute of Water and Atmospheric Research. Perhaps more worrying to an investor, those sequestration numbers were low—about 1, tons of soome per ton of iron added, as opposed to the 30, tosuggested by laboratory experiments.
Carefully designed research Despite the suspected drawbacks to full-scale iron fertilization, private companies—and many scientists—support the idea of another round of experiments. While the past experiments showed widely variable results, proponents read this as an opportunity for refinement through engineering. For millennia, humans have been repeating processes that at first were marginally useful and tuning them to our purposes. Continued research could address a number of key questions see box belowand those answers could point the way to higher yields and efficiency. Proponents of iron addition do acknowledge the possibility of environmental ill-effects.
Still, no such effects have been detected during the past 12 experiments, probably because the experiments were small—around a ton of iron added over a few hundred square kilometers of ocean. By incrementally scaling up, they believe they can detect and avoid environmental problems. By the time the science is worked out, he said, the economics may be worked out as well. Anchoring all of the arguments for continued research is the brutal fact of global carbon emissions. Combined, these wedges must begin to slow the growth of, and eventually lead to a net reduction in, our current global emissions of 7 to 8 billion tons of carbon per year.
But with minimal progress so far on any wedges, and with China and India committing to major emissions increases as they develop, iron fertilization beckons as one tool in a toolbox of partial solutions. At present, iron fertilization falls into a gray area in both international law and formal carbon-trading markets, but this is changing. Iron fertilization would happen on the open ocean, which is not owned by any country, according to David Freestone, senior adviser in the Legal Office of the World Bank, who briefed the symposium participants.
While international treaties such as the London Convention, which governs ocean dumping and pollution, might address iron addition, treaty nations have not yet decided whether it might constitute pollution because its possible side effects remain unknown. Ship crews intending to flout an international treaty could do so by electing to fly the flag of a country that has not signed it—a route that has already been publicly considered by one company. Carbon trading markets are young but growing, Neeff said. Strictly regulated markets, set in motion by the Kyoto Protocol treaty, last year traded million tons of carbon offsets worth billions of dollars among companies required to reduce total emissions.
One ton of carbon equals 3. Then there are voluntary markets, Neeff said, where concerned individuals or companies buy carbon offsets to assuage their conscience or green their image. Traders would be free to sell offsets from iron fertilization in these markets. Voluntary markets represent one more worry for opponents of iron fertilization. Iron fertilization companies might make superficial estimates of the amount of carbon they sequester and enter a hefty balance in their trading ledgers. Any large profits made from under-regulated credits would encourage other outfits to go into business. But those are future scenarios.
By the time iron fertilization moves from experiment to industry, laws may well be in place to regulate it, said Kite-Powell. Iron fertilization is not a silver bullet, said Margaret Leinen, the chief science officer at the firm Climos and former assistant director of geosciences at the National Science Foundation. That may be a tremendous advantage compared with more familiar but less secure approaches like planting trees, he said. Skeptics should not dismiss the idea out of hand before scientists have had the chance to work out the details. One way to quell doubts lies with carefully conducting larger experiments.
But iron fertilization is unlikely to receive much more federal funding. In a parallel with the way universities routinely conduct trials of the safety and efficacy of potential pharmaceuticals, Michaels pointed out that oceanographers may need to learn how to be involved with tests of iron fertilization. It discusses findings in relation to some of the work in the field but ignores other important work. The study lacked clear control groups or other comparison metrics. The study did not conform to recognized procedures or methodology that can be repeated.
The analysis is not statistically valid or does not follow the norms of the field. The conclusions cannot be justified on the basis of the rest of the paper. The arguments are illogical, unstructured or invalid. The data does not support the conclusions.
The conclusions ignore carbpn portions of the literature. It's simply a small extension of a different paper, often from the same authors. Findings are incremental and do not advance the field. The work is clearly part of a larger study, chopped up to make as many articles as possible.
'Eight reasons I rejected your article'
The language, structure, or figures are so poor that the merit can't be assessed. Have a whatt English speaker read the paper. Even if you ARE a native English speaker. We offer language services. It is not archival, is incremental or of marginal interest to the field see point 6. The question behind the work is not of interest in the field.