Sentences with phrase «from terrestrial sources»

It turns out that it would be very difficult to increase protein production from terrestrial sources.

Semiletov's work during the 1990s showed, among other things, that the amount of methane being emitted from terrestrial sources decreased at higher latitudes.

Uranium from terrestrial sources can last for approximately 100 years, according to Erich Schneider of the University of Texas - Austin.

Only 10,000 marine compounds have been isolated so far, he points out, compared with 150,000 from terrestrial sources, so that you're much more likely to come up with a brand new molecule if you look in the oceans.

Not exact matches

Using data from several sources on 162 terrestrial animals and plants unique (endemic) to the Albertine Rift, the researchers used ecological niche modeling (computer models) to determine the extent of habitat already lost due to agriculture, and to estimate the future loss of habitat as a result of climate change.

And the fact that their primary feed source comes from conventionally grown terrestrial crops means that their diets can include trace amounts of pesticides and herbicides as well.

«The model we developed and applied couples biospheric feedbacks from oceans, atmosphere, and land with human activities, such as fossil fuel emissions, agriculture, and land use, which eliminates important sources of uncertainty from projected climate outcomes,» said Thornton, leader of the Terrestrial Systems Modeling group in ORNL's Environmental Sciences Division and deputy director of ORNL's Climate Change Science Institute.

Based on the data, the scientists conclude that «worldwide rice production is responsible for [about] 1 percent of atmospheric methyl bromide and 4 percent of atmospheric methyl iodide» and that «methyl iodide emissions from rice paddies provide a sizable terrestrial source to the global budget.»

«If this were a real astronomical source, it would be rather strange,» said Suntzeff, adding that his guess would be that the signal is actually terrestrial and may be a 11 GHz burst from a military source.

And oddly, steps being taken to decrease emissions from the first two sources could actually increase terrestrial carbon emissions globally.

Lafferty started out believing from review of previous published literature that «infectious disease was preventing the recovery of sea otters, and the most likely source of infection of Toxoplasma gondii was terrestrial runoff containing oocysts defecated by cats,» but when he and colleagues tagged 135 California sea otters in 2009 and followed them for four years, they found that «Counter to expectations, sea otters from unpopulated stretches of coastline,» around Big Sur, are less healthy and more exposed to parasites than city - associated otters,» from the Monterey Bay area, who have more exposure to fecal matter from cats.

I had assumed that the CO2 that amplified the M cycles came from a variety of sources: terrestrial, aqueous and seabed... What you say makes sense.

Proposed hypothe - ses include (i) biogenic methane from gas hydrate dissociation (Dickens et al., 1995,1997); (ii) CO2 from extensive oxidation terrestrial organic carbon (Kurtz et al., 2003; Deconto et al., 2012); (iii) thermogenic methane derived from emplacement of a large 25 igneous province (LIP) in the North Atlantic (Svensen et al., 2010) or combinations of such sources (Sluijs et al., 2007; Panchuk et al., 2008).

He added that the European Union had canceled a project monitoring methane that was particularly valuable because it could distinguish between emissions from terrestrial bogs, gas fields and the like and ocean sources.

During glacial to interglacial transitions there was no addition of CO2 to the atmosphere from extraneous sources like human beings and thus there was a net release of CO2 from the oceans and terrestrial sources.

I do, however, recognize the point of your suggestion that year to year fluctuations in the rate of CO2 change can involve flux changes between atmospheric and terrestrial or oceanic sources that add to or subtract from the human contribution.

Mappings of the geochemistry and magnetic susceptibility of detrital sources in the watershed of the lagoon and from the coastal barriers were undertaken in order to track the terrestrial or coastal / marine origin of sediments deposited into the lagoon.

But if they didn't come to the conclusion that terrestrial water sources made no difference from inverse modeling, I'm not really sure how to take this comment.

As shown in part «b» in Wieder et al.'s figure, the terrestrial carbon store over the 21st Century changes from a net sink of 125 GtC to a net source of 156 GtC once nutrient constraints are imposed.

Terrestrial mosses get their carbon from the atmosphere so have no source of old carbon — unless they are growing on a volcanic fumeroles or hotspring out - gassing CO2.

Could someone with no background in science program a computer to take the satellite and terrestrial data from five sources in different formats, import them, display very clear graphs from each or all or any subset of them and write a subroutine to calculate the least - squares linear - regression trends and the determination coefficients?

Stefan Rahmstorf, a climate physicist at the Potsdam Institute for Climate Impact Research, says that, even though CO2 emissions from fossil - fuel sources are down, global emissions overall are still increasing, mainly because of changes in terrestrial ecosystems, including deforestation in the Amazon Basin.

The only way you can get around the requirement that the steady - state temperature be such that the energy in from the sun equals the energy out from terrestrial radiation is to have some other significant source of energy.

I have tried a little test at my terrestrial ecology section (I'm a biologist), and every single student I have asked who were just passingly familiar with the carbon cycle, sources and sinks and basic isotopic facts, has immediately been able to point out the obvious weaknesses (e.g. «if the atmospheric CO2 rise came from oceanic outgassing, then why has oceanic CO2 risen too»?).

The solar radiation is from a source of about 5800 K and centered on 0.5 μm, whereas the terrestrial radiation is from a source of around 288 K and centered on 10 μm.