Many researchers are concerned that
if old carbon begins to cycle it could create a feedback loop — its emissions contribute to warming, which again contributes to the thawing of more permafrost.
Not exact matches
The fact there's
carbon in them (
if that even is the element, I honestly don't remember) is that they then CA N'T be as
old as we are usually told.
If you accept the
carbon 14 dating method as accruate as the entire scientific community does, than that woudl be «proof» that dinosaurs and vegitation fossils are as
old as estimated.
If you see a fossil, it is much easier to think that it is just really
old, rather than a god put it there, made it to look
old, made it so
carbon dating would give a false result, etc etc..
I admire your Optimism truly never loose it, however ist it better to be optimistic where there is genuinely change as opposed to the same
old same
old we get with Arsene and the board, our last 7 Premier league seasons I virtually
carbon copies... I mean
if you where to buy a DVD copy of Arsenals last 3 premier league seasons you'd be waisting your money...
Carrasco's flair down the left flank and favourite No10 shirt would make him a
carbon - copy replacement for fellow Belgian Eden Hazard,
if the 25 - year -
old was to get his dream move to Real Madrid in the near future.
So
if you have
old or damaged mobiles, sell mobile phones online to help out the economy and protect us from the clutches of
carbon emissions.
Old carbon isn't part of that equation
if it remains trapped in frozen soil, but it's released as methane and
carbon dioxide when permafrost soils thaw and decompose.
The next step is to perform
carbon - 14 dating on the fossils to see
if they are indeed 5,000 years
old.
The particles» incredible brightness makes some astronomers suspect that the rings are much younger than the planet:
If they were
old, they would have been darkened by accumulated
carbon from meteoroid impacts.
«More research is needed to assess whether graphitic
carbon in the
oldest sedimentary rocks belongs to these rocks and
if it indicates the existence of microbial ecosystems on the earliest Earth,» lead author Papineau said.
A more sound approach would recognize that (1) converting
old forest to young forests releases significant amounts of
carbon (both above and below ground), (2) young forests are only good
carbon sinks
if they are allowed to grow and hold onto the
carbon for centuries, yet there are too few economic incentives for doing so, and (2) the fraction of
carbon that is put into long - term storage after logging is very small, i.e.
old forests are better at storing
carbon than our disposable culture.
If climate change were to trigger large emissions of methane to the atmosphere from these
old carbon reservoirs, the result would be even more warming.
If a fossil contains 60 % of its original
carbon, how
old is the fossil?
If you have a fossil, you can tell how
old it is by the
carbon 14 dating method.
Is
carbon dating 100 accurate and 26 dating 20 dating a 26 year
old Something eye
if the barca star is.
If the engine was somewhat
old school with no forced induction or electrical assistance to get in the way then the rest of the car was bang up to date with a carbonfibre body, F1 - style electro - hydraulic transmission with steering wheel - mounted shift lights and
carbon ceramic brakes.
Anti-regulatory blogs and commentators and the McCain - Palin campaign made a push to publicize a 10 - month -
old comment by Senator Barack Obama about the high cost of coal burning
if and when a hard cap is set for
carbon dioxide emissions.
We have only a limited amount of time and resources to confront climate change problem, and we should not be using them to refine
old polluting technologies that will always remain
carbon - based even
if the output per ton of GHGs is higher.
Of course until the in vitro is commercially viable and low - energy (
if ever), we can stick with the really easy, inexpensive, lower -
carbon,
old - school (Diet for a Small Planet) approach of just shifting our diets more towards plants and away from animal products.
A more sound approach would recognize that (1) converting
old forest to young forests releases significant amounts of
carbon (both above and below ground), (2) young forests are only good
carbon sinks
if they are allowed to grow and hold onto the
carbon for centuries, yet there are too few economic incentives for doing so, and (2) the fraction of
carbon that is put into long - term storage after logging is very small, i.e.
old forests are better at storing
carbon than our disposable culture.
If carbon continued to accumulate in
old growth forests, as some like to pretend, then where is the
carbon that has been accumulating for the last few thousand years?
The truth is
if you produce power using
old power plants, you're going to be emitting more
carbon — but to upgrade those plants, energy's going to be a little bit more expensive, at least on the front end.
Replacing
old slowly growing forest by young rapidly growing one is useful only
if the
old trees are either stored so that they will not release their
carbon back to atmosphere or used to replace fossil fuels or materials, whose manufacturing causes CO2 emissions.
And
if you simply grew stuff to produce biochar, the
carbon economics would be turned on their head, just as they are
if old - growth forest is stripped for biofuel plantations.
How do you answer an 8 - year -
old who asks that question, when Oregon's snowpack will be less than 50 % of what it is now within 4 decades
if carbon emissions aren't cut quickly and substantially?
If you're just looking at the
carbon, the
old mantra is «A ton is a ton is a ton,»» says Ethan Ravage, the West Coast representative of the International Emissions Trading Association, an industry group.
I call it Project Zero — because its aims are a zero -
carbon - energy system; the production of machines, products and services with zero marginal costs; and the reduction of necessary work time as close as possible to zero...
If I am right, the logical focus for supporters of postcapitalism is to build alternatives within the system; to use governmental power in a radical and disruptive way; and to direct all actions towards the transition — not the defence of random elements of the
old system.
Old forests that are protected and allowed to grow and recovery for long periods after fires and hurricanes would store
carbon over time, more so than
if those same lands were managed as agricultural fields or short - rotation tree farms.
«Even
if old growth forests are not mitigating
carbon emissions, regrowing forests and restored forests will nonetheless be very effective in increasing
carbon sequestration in tropical regions.»
Further, even
if by magic the terrestrial moss used
old carbon such that half of the
carbon was
old.
As will be shown, the depiction would be far more accurate
if it was turned upside down, so that the downward arrows point upwards to illustrate shell dissolution happens when
old carbon stored at depth is upwelled to the surface.
However,
if there were a
carbon tax the situation might be quite different, and it could well be some
old fossil fuel burner getting shut down — a far more agreeable outcome.
In fact,
if we continue on our current path of high heat - trapping emissions, the region is projected to see forest fires during June and July at two to three times its current rate.2, 6 Some 1 billion metric tons of organic matter and
older - growth trees could burn7, 15 — accelerating the release of stored
carbon and creating a dangerous global warming amplification or feedback loop.5, 14
The survey of 2,800 young people across six countries carried out by TNS found 83 percent of 18 - to 25 - year -
olds in China would be more loyal to a brand
if they could see it was reducing its
carbon footprint.
Conversely,
if the offset mechanism of choice were
old - growth forests — an important target of conservation efforts [33], but for which respiration rates often equal sequestration — the net balance of
carbon sequestration from forests is zero or close to it.
If no new coal plants are built and each existing unit is retired when it turns 40 years
old, the 2 °C
carbon budget will still be exhausted by 2040.
But
if Mr. Dimon's people did the math on sustainability and calculated the embodied energy and
carbon in the six - year -
old building they are throwing away, and the same for the square footage that they are rebuilding, it would probably add up to more than every other step they are taking in their 75 million square feet of property.
Carbon stored in the logged wood for a fence or deck may last a handful of years, but
if we leave that
carbon in an
old growth tree can stay there for hundreds of years.
If you have an
older car or truck, have the exhaust system checked for
carbon monoxide leaks.