Warm temperatures in the northern hemisphere have led to a rapid melt in late June and early July.

The current area of sea ice in the Arctic is 8.5 million sq km: this is a record low level for this time of year since the commencement of the satellite record, and about 2.5 standard deviations below the 1981-2010 average. The North-east passage is already clear, with two more months of melt to go.

The sea ice area in the Antarctic is currently the second lowest on record for this time of year, around 2 standard deviations below the average.

dv said:

Warm temperatures in the northern hemisphere have led to a rapid melt in late June and early July.

The current area of sea ice in the Arctic is 8.5 million sq km: this is a record low level for this time of year since the commencement of the satellite record, and about 2.5 standard deviations below the 1981-2010 average. The North-east passage is already clear, with two more months of melt to go.

The sea ice area in the Antarctic is currently the second lowest on record for this time of year, around 2 standard deviations below the average.

> The North-east passage is already clear, with two more months of melt to go.

Oh! Good.

mollwollfumble said:

dv said:

Warm temperatures in the northern hemisphere have led to a rapid melt in late June and early July.

The current area of sea ice in the Arctic is 8.5 million sq km: this is a record low level for this time of year since the commencement of the satellite record, and about 2.5 standard deviations below the 1981-2010 average. The North-east passage is already clear, with two more months of melt to go.

The sea ice area in the Antarctic is currently the second lowest on record for this time of year, around 2 standard deviations below the average.

> The North-east passage is already clear, with two more months of melt to go.

Oh! Good.

As long as you are not a polar bear.

PermeateFree said:

mollwollfumble said:

dv said:

Warm temperatures in the northern hemisphere have led to a rapid melt in late June and early July.

The current area of sea ice in the Arctic is 8.5 million sq km: this is a record low level for this time of year since the commencement of the satellite record, and about 2.5 standard deviations below the 1981-2010 average. The North-east passage is already clear, with two more months of melt to go.

The sea ice area in the Antarctic is currently the second lowest on record for this time of year, around 2 standard deviations below the average.

> The North-east passage is already clear, with two more months of melt to go.

Oh! Good.

As long as you are not a polar bear.

Or an Inuit – They’ve now got fifty words for nothing.

Buggerall, nowt, zero, sweet FA…

dv said:

Warm temperatures in the northern hemisphere have led to a rapid melt in late June and early July.

The current area of sea ice in the Arctic is 8.5 million sq km: this is a record low level for this time of year since the commencement of the satellite record, and about 2.5 standard deviations below the 1981-2010 average. The North-east passage is already clear, with two more months of melt to go.

The sea ice area in the Antarctic is currently the second lowest on record for this time of year, around 2 standard deviations below the average.

New research is out on thawing permafrost –
and it’s worse than climate scientists thought

July 3 (UPI) — The problem of thawing permafrost is worse than
climate scientists thought. New research suggests previous studies
have underestimated the rate at which thawing permafrost is releasing
carbon into the atmosphere.

Ogmog said:

dv said:

Warm temperatures in the northern hemisphere have led to a rapid melt in late June and early July.

The current area of sea ice in the Arctic is 8.5 million sq km: this is a record low level for this time of year since the commencement of the satellite record, and about 2.5 standard deviations below the 1981-2010 average. The North-east passage is already clear, with two more months of melt to go.

The sea ice area in the Antarctic is currently the second lowest on record for this time of year, around 2 standard deviations below the average.

New research is out on thawing permafrost –
and it’s worse than climate scientists thought

July 3 (UPI) — The problem of thawing permafrost is worse than
climate scientists thought. New research suggests previous studies
have underestimated the rate at which thawing permafrost is releasing
carbon into the atmosphere.

The question is, have we reached the tipping point and therefore beyond our control? It is beginning to look that way.

PermeateFree said:

Ogmog said:

dv said:

Warm temperatures in the northern hemisphere have led to a rapid melt in late June and early July.

The current area of sea ice in the Arctic is 8.5 million sq km: this is a record low level for this time of year since the commencement of the satellite record, and about 2.5 standard deviations below the 1981-2010 average. The North-east passage is already clear, with two more months of melt to go.

The sea ice area in the Antarctic is currently the second lowest on record for this time of year, around 2 standard deviations below the average.

New research is out on thawing permafrost –
and it’s worse than climate scientists thought

July 3 (UPI) — The problem of thawing permafrost is worse than
climate scientists thought. New research suggests previous studies
have underestimated the rate at which thawing permafrost is releasing
carbon into the atmosphere.

The question is, have we reached the tipping point and therefore beyond our control? It is beginning to look that way.

Sure is.

PermeateFree said:

Ogmog said:

dv said:

Warm temperatures in the northern hemisphere have led to a rapid melt in late June and early July.

The current area of sea ice in the Arctic is 8.5 million sq km: this is a record low level for this time of year since the commencement of the satellite record, and about 2.5 standard deviations below the 1981-2010 average. The North-east passage is already clear, with two more months of melt to go.

The sea ice area in the Antarctic is currently the second lowest on record for this time of year, around 2 standard deviations below the average.

New research is out on thawing permafrost –
and it’s worse than climate scientists thought

July 3 (UPI) — The problem of thawing permafrost is worse than
climate scientists thought. New research suggests previous studies
have underestimated the rate at which thawing permafrost is releasing
carbon into the atmosphere.

The question is, have we reached the tipping point and therefore beyond our control? It is beginning to look that way.

What about the methane that is also being released?

roughbarked said:

PermeateFree said:

Ogmog said:

New research is out on thawing permafrost –
and it’s worse than climate scientists thought

July 3 (UPI) — The problem of thawing permafrost is worse than
climate scientists thought. New research suggests previous studies
have underestimated the rate at which thawing permafrost is releasing
carbon into the atmosphere.

The question is, have we reached the tipping point and therefore beyond our control? It is beginning to look that way.

What about the methane that is also being released?

Just makes it worse.

Thanks MV.

Consider this huge crinoid fossil
https://www.fossilrealm.com/products/huge-crinoid-from-holzmaden-seirocrinus-subangularis

roughbarked said:

PermeateFree said:

Ogmog said:

New research is out on thawing permafrost –
and it’s worse than climate scientists thought

July 3 (UPI) — The problem of thawing permafrost is worse than
climate scientists thought. New research suggests previous studies
have underestimated the rate at which thawing permafrost is releasing
carbon into the atmosphere.

The question is, have we reached the tipping point and therefore beyond our control? It is beginning to look that way.

What about the methane that is also being released?

I presume that is the “carbon” they are referring to.

dv said:

Consider this huge crinoid fossil
https://www.fossilrealm.com/products/huge-crinoid-from-holzmaden-seirocrinus-subangularis

Beautiful fossil.

Wrong thread but yeah it is still a cool fossil

Witty Rejoinder said:

Thanks MV.

No worries.

dv said:

Consider this huge crinoid fossil
https://www.fossilrealm.com/products/huge-crinoid-from-holzmaden-seirocrinus-subangularis

Awesome. Absolutely amazing. Most crinoid fossils are completely disarticulated and individual or strings of ossicles are all that is preserved. Calices are rarely preserved. Arms and pinnules are almost never seen.

In my fossil collection I have several feather stars (free-floating crinoids) that are nearly complete. From the Solnhofen Limestone. Got them as a teenager when I was allowed to search for fossils in three pallets of limestone tiles that had been dropped and smashed in transit from Germany to Sydney. I found a calix (without arms etc) in a limestone near Yass.

will rain forest or at least re-forestation emerge again in Antarctica and the arctic ice just shrivel up to nothing?

monkey skipper said:

will rain forest or at least re-forestation emerge again in Antarctica and the arctic ice just shrivel up to nothing?

It won’t happen over night.

roughbarked said:

monkey skipper said:

will rain forest or at least re-forestation emerge again in Antarctica and the arctic ice just shrivel up to nothing?

It won’t happen over night.

but it will happen (insert kiwi accent)

monkey skipper said:

roughbarked said:

monkey skipper said:

will rain forest or at least re-forestation emerge again in Antarctica and the arctic ice just shrivel up to nothing?

It won’t happen over night.

but it will happen (insert kiwi accent)

That’s the one.

https://nsidc.org/arcticseaicenews/2019/08/europe-heat-wave-moves-north/

Arctic sea ice extent for July 2019 set a new record low of 7.59 million square kilometers (2.93 million square miles). The monthly average extent was 80,000 square kilometers (30,900 square miles) below the previous record low set in 2012 and 1.88 million square kilometers (726,000 square miles) below the 1981 to 2010 average. On a daily basis, ice tracked at record low levels from July 10 through July 14 and July 20 through the end of the month.
—-
Another factor that plays a role in ice melt is deposition of dark soot from wildfires on the highly reflective snow and ice surfaces, allowing more of the sun’s energy to be absorbed. Since the beginning of June, more than 100 large wildfires have been observed over Arctic lands, including Alaska, Greenland, and Siberia (Figure 5a). Smoke from these fires has been observed to blow across Greenland and over sea ice areas.
—-

The Arctic Sea Ice extent appears to have reached its minimum for 2019, though it is not impossible that there will be a deeper minimum later in the month. At 4.153 million sq km, this would be the second lowest annual minimum on record.

so, good news, the bottom is behind us

SCIENCE said:

so, good news, the bottom is behind us

That’s right. Snowball Earth here we come.

dv said:

SCIENCE said:

so, good news, the bottom is behind us

That’s right. Snowball Earth here we come.

https://nsidc.org/arcticseaicenews/

So the ice extent tracked the 2012 minimum until the fires started, then flattened out early.

Coincidence, or could the fires have actually reduced the melt rate (for this year at least)?

The Rev Dodgson said:

dv said:

SCIENCE said:

so, good news, the bottom is behind us

That’s right. Snowball Earth here we come.

https://nsidc.org/arcticseaicenews/

So the ice extent tracked the 2012 minimum until the fires started, then flattened out early.

Coincidence, or could the fires have actually reduced the melt rate (for this year at least)?

Could be wrong but I don’t think the fires could have had such a major effect.