Sentences with phrase «out of ice age temperatures»

Not exact matches

As temperatures warm, the Arctic permafrost thaws and pools into lakes, where bacteria feast on its carbon - rich material — much of it animal remains, food, and feces from before the Ice Age — and churn out methane, a heat trapper 25 times more potent than carbon dioxide.

To put things in perspective, the global temperature shift between the last Ice Age and now is believed to be 10 °F; and an estimated 11 °F increase in world temperatures was sufficient to wipe out 95 % of species at the end of the Permian Period 250 million years ago.

The next 6 decades to 1949 are all warming as temperatures climb out of the Little Ice Age, from about 9.1 to 9.6 degrees C.

When you combine all the positive feedbacks of albedo, greenhouse gases and temperatures, you get the wide swings into and out of ice ages.

A greenhouse gas, I may say, that is known to be implicated in a large part of the temperature swings between ice ages and interglacials, not even to mention the going in and coming out of the «Snowball Earth» episodes of the Precambrian.

The next 6 decades to 1949 are all warming as temperatures climb out of the Little Ice Age, (when the Thames froze) from about 9.1 to 9.6 degrees C. For the last 6 decades, to 2009, we are looking for the impact (or non-impact) of exponentially increasing CO2.

The next 6 decades to 1949 are all warming as temperatures climb out of the Little Ice Age, from about 9.1 to 9.6 degrees C. For the last 6 decades, to 2009, we are looking for the impact (or non-impact) of exponentially increasing CO2.

The next 6 decades to 1949 are all warming as temperatures climb out of the Little Ice Age, (when the Thames and the sea froze) from about 9.1 to 9.6 degrees C.

Re The Holocene, surely it's a time where global temperatures show no sign, until now, of (excluding the rise out of the ice age before that's the cry) temperatures rising.

The glaciological community has for decades harbored the widespread belief that the thermal evolution of the ice sheet, and the effect of this evolution on ice flow, are central in the ice - age cycling (not all communities agree, but there is plenty of literature on this from the land - ice crowd), so use of a temperature - independent rheology for the ice leaves out one favored explanation for termination of extensive glaciation.

To figure that out, scientists have been looking back to the end of the last ice age, about 11,000 years ago, when global temperatures stood at roughly their current levels.

Our temperature is consistent with coming out of the ice age, and the Sun cycles.

With weather averaged out, with solar cycles averaged out, with ice ages and Milankovitch cycles averaged out, in geologic time, galactic cosmic ray flux * is * the driver of the great ice ages and hothouse periods in the Phanerozoic, with something of a 6C or 7C peak to peak temperature swing of * equatorial * ocean temperatures (from my eyeball measurement of a Veizer chart).

The Livingston and Penn Solar data indicate that a faster drop to the Maunder Minimum Little Ice Age temperatures might even be on the horizon.If either of these actually occur there would be a much more rapid and economically disruptive cooling than that forecast above which may turn out to be a best case scenario.»

Since all those great rises and falls in temperature in and out of interglacials, not shown, happened with carbon dioxide never above the 300 ppm it shows that carbon dioxide levels were irrelevant to these great rises and falls in temperature — 650,000 thousand years of showing carbon dioxide irrelevant as we go back into our Ice Age and every 100,000 years dramatically heat up into interglacials.

«The last century stands out as the anomaly in this record of global temperature since the end of the last ice age,» says Candace Major, program director in the National Science Foundation's (NSF) Division of Ocean Sciences.

The natural variation that has led us out of the Little Ice Age has a bit of frosting on the cake by land use; and, part of that land use has resulted in a change in vegetation and soil CO2 loss so that we see a rise in CO2 and the CO2 continues to rise without a temperature accompaniment (piano player went to take a leak), as the land use has all but gobbled up most of the arable land North of 30N and we are starting to see low till farming and some soil conservation just beginning when the soil will again take up the CO2, and the GMO's will increase yields, then CO2 will start coming down on its own and we can go to bed listening to Ave Maria to address another global crisis to get the populous all scared begging governments to tell us much ado about... nothing.

But much stronger albedo effects (a measure of how much sunlight is simply reflected back out into space) might be generated by the high winds of the glacial era, giving 10 °C temperature changes rather than the 1 °C excursion of the Little Ice Age.

Calculated global average temperature may be slightly higher over the past 100 years (coming out of the Little Ice Age a few hundred years ago), but all other climatic variables have remained basically constant.

Skeptics have long been pointing out that some of the same alarmists who are now warning of the Earth's warming were some 30 years ago warning of cooling temperatures and a coming ice age.

Is it «The last century stands out as the anomaly in this record of global temperature since the end of the last ice age....

Jim D: The rate of temperature change now is a hundred times faster than the rise out of the last Ice Age

The rate of temperature change now is a hundred times faster than the rise out of the last Ice Age, and it is not surprising because the forcing rate of change from GHGs alone is that much faster too.

Yet before the 70s were out, temperatures were rising and many of the soothsayers for a new ice age were warning of global warming instead.

Lower temperatures = less melting = more ice = lower temperatures, on and on and until factors # 1 and # 2 rescue us from turning into a giant snowball (or, during the most extreme ice age, a spate of volcanic eruptions eventually helped belch out enough carbon dioxide to warm the atmosphere and reset the thermostat.)

According to the authors, «if you reconstruct temperatures on a global scale — and not just examine Antarctic temperatures — it becomes apparent that the CO2 change slightly preceded much of the global warming, and this means the global greenhouse effect had an important role in driving up global temperatures and bringing the planet out of the last Ice Age.»

It's important academically, but the most important point is temperatures coming out of the ice age increased very slowly.

Idso's calculations for climate sensitivity are greatly at odds with the paleoclimate data; if sensitivity were as small as he proposes, the Milankovic changes in solar forcing wouldn't be enough to kickstart the climb out of an ice age, but this still presupposes AGW, that CO2 emissions will increase the temperature by some amount.