during a period called the Holocene Climate Optimum, there was more open water and far less ice than today - probably less than 50% of the minimum
Arctic sea ice recorded in 2007. Problem is there was no one to take methane leak readings.
"Early records of sunspots indicate that the Sun went through a period of inactivity in the late 17th century. Very few sunspots were seen on the
Sun from about 1645 to 1715.... This period of solar inactivity also corresponds to a climatic period called the "Little Ice Age" when rivers that
are normally ice-free froze and snow fields remained year-round at lower altitudes. There is evidence that the Sun has had similar periods of
inactivity in the more distant past."
28 Jun 1998 - NASA's Hubble Space Telescope and several ground-based instruments show that temperatures on Neptune's largest moon have increased
dramatically since the Voyager space probe in 1989. So much so, in fact, that Triton's surface of frozen nitrogen is turning into gas, making its
thin atmosphere denser by the day.
Elliot and colleagues from the Lowell Observatory and Williams College reported their findings in the June 25 issue of Nature. Triton's 5 percent
increase in temperature from about -392 to -389 degrees F would be like the Earth experiencing a jump of some 22 degrees F in just nine years.
All the reports I have read say the Jovian system is also warming...The only reason I point this out is to show our sun's radiance and it's position
in the galactic plain coupled with the earths spin axis (wobble every 26,000 years) can not be ruled out when discussing climate change.
Scientists returning from a seaborne expedition to the Arctic say that the ongoing panic in some quarters regarding runaway emissions of methane from
the chilly polar seas - and associated imminent global-warming disaster - appears to be unjustified.
For those unacquainted with this particular panic, the idea is that rising Arctic sea temperatures caused by humans in recent times are causing
methane locked up as hydrates on the chilly seabed to be emitted into the atmosphere as gas – as methane hydrates are only stable at very low
temperatures and high pressures. Methane, as any fule kno, is a hugely more powerful greenhouse gas than CO2, so this would cause more warming which
would then release more methane from the seabed until once again planet Earth becomes a baking lifeless hell. As ever with scenarios leading to baking
lifeless hell, the hippies* at Greenpeace and similar activists are very keen on this idea. Various scientists have detected methane emissions from
Arctic waters by various means, too. END QUOTE:
Please do not think I am arguing with your concern over the methane gas; in truth I am not and think it puzzling to say the least. I could have
posted many articles claiming methane will be the death of us but I could have posted others saying with a 50% increase of the ice shelf over the last
5000 years there was more methane leaking in the past.
In fact, what the researchers
found in the area offers a much
more differentiated picture.
Above all the fear that the gas emanation is a consequence
of the current rising sea
temperature does not seem to apply. At least some of the gas outlets have been active for
longer. Carbonate deposits, which form when microorganisms convert the escaping
methane, were found on the
vents. “At numerous emergences we found deposits that
might already be hundreds of years old. This
estimation is indeed only based on the size
of the samples and empirical values as to how fast such deposits grow. On any account,
the methane sources must be older” says Professor Berndt. The exact age of the
carbonates will be determined from samples in GEOMAR’s laboratories. END QUOTE:
This is a much shorter version of what I tried to post earlier when the internet crashed and I lost almost 3 hours of research!! Pissed me off to say
the least! Anyway I figure the OP will read the info posted because he actually cares where those who think all the worlds ills are caused by mankind
will not take the time to consider all the possibilities.