And to find those answers, one must go back and look at what was happening with
temperatures hundreds to thousands of years ago.
Not exact matches
Hoegh - Guldberg said scientific consensus was that hikes in carbon dioxide and the average global
temperature were «almost certain
to destroy the coral communities
of the Great Barrier Reef for
hundreds if not
thousands of years».
For
hundreds of thousands of years, carbon dioxide and
temperature had been linked: anything that caused one
of the pair
to rise or fall had caused a rise or fall in the other.
Turning up the heat seems
to increase the rate at which the plants produce methane, Keppler says, which could explain why atmospheric levels
of methane were high
hundreds of thousands of years ago when global
temperatures were balmy.
«We tend
to think that ice sheets will melt or respond
to increases in
temperature on
hundreds - or
thousands -
of -
year time scales,» Montañez said.
«We know that bacteria have the potential
to remain viable and metabolically active at low
temperatures for
hundreds to thousands of years,» said Redeker.
Not
to mention that we KNOW levels
of CO2 are higher than they have been in
hundreds of thousands of years, and data from dendrochronology and ice core studies prove that high levels
of CO2 are correlated with higher
temperatures.
Of course not, the rise will continue approximately at the current rate, as e.g. the ice sheets will continue to melt due to the elevated temperature — it takes hundreds if not thousands of years until they have finished this response to the past warmin
Of course not, the rise will continue approximately at the current rate, as e.g. the ice sheets will continue
to melt due
to the elevated
temperature — it takes
hundreds if not
thousands of years until they have finished this response to the past warmin
of years until they have finished this response
to the past warming.
Specifically, how much will
temperatures rise if the concentration
of the main greenhouse gas
of concern, carbon dioxide, doubles from the level
of 280 parts per million that prevailed as the industrial revolution got into gear in the 19th century and was not exceeded for
hundreds of thousands of years prior
to that.
They found that over
hundreds of thousands of years, CO2 and
temperature had been linked through feedbacks: anything that caused one
of the pair
to rise or fall brought a rise or fall in the other.
The fairly sharp projected increase in
temperature of the troposphere at present gives a big disparity in the changes
of temperature over
thousands of years to a
hundred thousand years.
On blogs like Dr. Curry's I continually see learned, and heated, arguments over the meaning
of fluctuations in the «annual
temperature of the earth» in the hundredths of a degree range (sometimes thousandths), with data plotted over hundreds or thousands of years, while noticing that there doesn't seem to be a DEFINITION of the «Annual Temperature of the Earth» and that the climate science community, collectively, would be hard pressed to provide me with an «Annual Temperature of Bob's House» with a credible and defensible resolution and precision of + / -.01 degree, using an instrumentation system of th
temperature of the earth» in the hundredths
of a degree range (sometimes thousandths), with data plotted over
hundreds or
thousands of years, while noticing that there doesn't seem
to be a DEFINITION
of the «Annual
Temperature of the Earth» and that the climate science community, collectively, would be hard pressed to provide me with an «Annual Temperature of Bob's House» with a credible and defensible resolution and precision of + / -.01 degree, using an instrumentation system of th
Temperature of the Earth» and that the climate science community, collectively, would be hard pressed
to provide me with an «Annual
Temperature of Bob's House» with a credible and defensible resolution and precision of + / -.01 degree, using an instrumentation system of th
Temperature of Bob's House» with a credible and defensible resolution and precision
of + / -.01 degree, using an instrumentation system
of their choice.
If the world as a whole cut all emissions tomorrow the average
temperature of the planet is not going
to drop in several
hundred years, perhaps as much as a
thousand years because the system is overburdened with CO2 that has
to be absorbed and that only happens slowly.
The scientific consensus has concluded that further increases in CO2 and average global
temperature are almost certain
to destroy the coral communities
of the Great Barrier Reef for
hundreds if not
thousands of years.
Swings
of temperature that scientists in the 1950s believed
to take tens
of thousands of years, in the 1970s
to take
thousands of years, and in the 1980s
to take
hundreds of years, were now found
to take only decades.
Are you actually claiming that the «best efforts»
of the data massagers are able
to not only tease out
temperature anomalies with hundredth degree resolution for the «annual
temperature of the Earth» going back a
thousand years or more, all but the most recent couple
of hundred years based solely on a variety
of «proxies», but, having teased them out, are able
to successfully attribute them
to some specific «driver», like ACO2?
The second question is, postulating that the
temperature record from satellites is absolutely accurate and unfudged, and in light
of the fact that climate changes historically occur naturally with periods
of hundreds to thousands of years, do you think that the 31 annual data points available from the satellite record are adequate
to establish long term climate trends and that the trends are a consequence
of human activity?
Given human nature over that
hundred plus
years of records, it is highly likely that all the foibles and faults
of those
thousands of observers and their measuring equipment will through sheer numbers and bulk have about evened out
to a neutral point around which the real actual
temperature will be centered.
When scientists later used ice cores
to tease out the pattern
of temperature and CO2 changes over the past few
hundred thousand years, they got the sort
of pattern you'd expect from the 1990 hypothesis (here's another graph).
Should we continue
to burn fossil fuels at the current rate, we are likely
to see the same
temperature increase in the space
of a few
hundred years that took a few
thousand years 55 million
years ago.
My guess the
temperature changes can't be measured there, the deep ocean takes
hundreds of years if not a
thousand to come
to the surface where it can impact the atmosphere and even then the dissipated heat can't raise the atmospheric global
temperature because
of all the changing currents and winds again spread it out.
Even if AGW use the unsubstantiated claim that CO2 stays in the atmosphere accumulating for
hundreds and even
thousands of years, take your pick, they make up the numbers
to suit, and double current amounts actually stayed in the atmosphere, this would be nonsense as «insulating blanket»
to not only stop heat loss globally but raise the global
temperature of the Earth.
During its over three
year journey the HMS Challenger not only collected
thousands of new species and sounded unknown ocean depths, but also took
hundreds of temperature readings — data which is now proving invaluable
to our understanding
of climate change.