Arctic ice thins dramatically

[westwall]

Can we move this to "Conspiracy" section please?

It is not a conspiracy theory. It is fact.

Hi Grace,

I wish it were. There is so far zero empirical evidence to support their theory...that's why they keep falsifying the records.

 

[Dont Taz Me Bro]

Everyone has their own opinion. .

Exactly, so it's not a fact; it's an opinion.

 

[ScienceRocks]

Everyone has their own opinion. .

Exactly, so it's not a fact; it's an opinion.

No shit.

 

[waltky]

Shark Numbers Decline By 80%...

Why Jaws needs protecting: Bahamas bans shark fishing as THIRD of all species now face extinction
6th July 2011 - They're supposed to be the ultimate hunters - but it turns out they're really the hunted.

A U.S. report has revealed shark numbers have declined by as much as 80 per cent worldwide, with a third of all species now threatened by extinction as millions are killed each year for their fins. It comes as the Bahamas announced it has banned commercial shark fishing in its territorial waters, the latest in a long line of countries anxious to protect the ocean predator. It turns the island chain's 243,244 square miles of territorial waters into a shark sanctuary, designed to protect the 40 species which inhabit that part of the Caribbean.

The move will also be good for the Bahamian economy. The country is one of the world's premier shark-watching destinations for divers, and the industry brings in $78million each year. It was already a shark-friendly country - 20 years ago it banned longline fishing, stopping sharks becoming caught in fishermen's nets and allowing the predators to thrive in its waters. Famously, the final Jaws movie was filmed on 'Jaws Beach', on the archipelago's New Providence Island.

But elsewhere sharks are increasingly under threat, according to a new report published by the Pew Charitable Trusts. It revealed shark numbers have declined by some 70 to 80 per cent, and a third of all species are threatened or near-threatened by extinction. Part of the reason is food. Each year, 73 million sharks are killed by fishermen to supply a growing market for Chinese delicacy - shark-fin soup.

Their fins are usually sliced off then the bloody carcasses are thrown overboard. On top of that, tens of millions of the predators are killed every year when they are caught in lines or nets intended for other fish. Shark-fin soup has traditionally been served in China as a way for people to show off their wealth. As the country's proportion of rich people grows, so too does the demand for shark fins, which can be worth up to 100 times more than the meat itself. And unlike, for example, tuna fish, which produce 10 million eggs each year, female Great White sharks produce just two to four live young every couple of years, so their numbers can fall dramatically in a short space of time.

Read more: Bahamas bans shark fishing as THIRD of all species now face extinction | Mail Online

 

[Chris]

Arctic sea ice extent for June 2011 was the second lowest in the satellite data record since 1979, continuing the trend of declining summer ice cover. Average ice extent fell below that for June 2007, which had the lowest minimum ice extent at the end of summer. However, ice extent this year was greater than in June 2010. The sea ice has entered a critical period of the melt season: weather over the next few weeks will determine whether the Arctic sea ice cover will again approach record lows.

Average ice extent for June 2011 was 11.01 million square kilometers (4.25 million square miles). This is 140,000 square kilometers (54,000 square miles) above the previous record low for the month, set in June 2010, and 2.15 million square kilometers (830,000 square miles) below the average for 1979 to 2000.

Arctic Sea Ice News & Analysis

 

[ScienceRocks]

 

[ScienceRocks]

 

[wirebender]

Arctic sea ice extent for June 2011 was the second lowest in the satellite data record since 1979, continuing the trend of declining summer ice cover. Average ice extent fell below that for June 2007, which had the lowest minimum ice extent at the end of summer. However, ice extent this year was greater than in June 2010. The sea ice has entered a critical period of the melt season: weather over the next few weeks will determine whether the Arctic sea ice cover will again approach record lows.

Average ice extent for June 2011 was 11.01 million square kilometers (4.25 million square miles). This is 140,000 square kilometers (54,000 square miles) above the previous record low for the month, set in June 2010, and 2.15 million square kilometers (830,000 square miles) below the average for 1979 to 2000.

Arctic Sea Ice News & Analysis

Interesting that 1979 seems to always be the cutoff date when looking at sea ice. Why might that be? Here is a news article from 1926 in which a dirigible pilot reports a great deal of open water at the north pole.

Here is a photo of the USS Skate on the surface at the North Pole in March, 1959. The ice doesn't look so thick to me. How about you?

Here is a photo of the Skate and its sister ship, The Sea Dragon at the North Pole in August, 1962. Again, the ice doesn't look so thick to me.

Here are 3 US subs at the North Pole in 1987. Once more, the ice doesn't appear to be that substantial.

 

[Chris]

1979 is when satellite measurements of the arctic ice began.

 

[wirebender]

1979 is when satellite measurements of the arctic ice began.

And that matters why when we know that being ice free isn't that unusual for the north pole?

 

[FactFinder]

Since we have been in a retreat since the last Ice Age, I damn well hope we still are.

 

[ScienceRocks]

Monster prelim tonight of -150k...huge loss!

150 thousand km loss yesterday of sea ice. We're now going to cross 2010 as 2010 weather pattern went to shit around the second week of July. 2011 weather pattern is kicking some serious ass...If we can hold onto it we WILL DESTROY 2007. We will blow through it.

 

[ScienceRocks]

Daily Sea Ice volume anomalies for each day are computed relative to the 1979 to 2010 average for that day of the year.

 

[ScienceRocks]

pic of arctic right now!

 

[wirebender]

I am not sure why the angst over the arctic ice. Historically, it isn't unusual for the pole to be ice free. The hysteria over the northern ice is baseless and little more than a boogie man to scare little kids with.

 

[Chris]

I am not sure why the angst over the arctic ice. Historically, it isn't unusual for the pole to be ice free. The hysteria over the northern ice is baseless and little more than a boogie man to scare little kids with.

The arctic hasn't been ice free for at least a million years.

 

[westwall]

I am not sure why the angst over the arctic ice. Historically, it isn't unusual for the pole to be ice free. The hysteria over the northern ice is baseless and little more than a boogie man to scare little kids with.

The arctic hasn't been ice free for at least a million years.

It's not ice free now, and we don't know if your contention is correct. There was far less sea ice at the Arctic in the 1920's and in the 1960's when the US subs visited it. Here is the North pole today.

 

[CrusaderFrank]

I am not sure why the angst over the arctic ice. Historically, it isn't unusual for the pole to be ice free. The hysteria over the northern ice is baseless and little more than a boogie man to scare little kids with.

The arctic hasn't been ice free for at least a million years.

More like a Beeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeelion years

 

[ScienceRocks]

 

[ScienceRocks]

-130 thousand km for 7-9 melted. http://www.ijis.iarc.uaf.edu/seaice/extent/plot.csv

07,01,2011,9062813
07,02,2011,8913438
07,03,2011,8745313
07,04,2011,8669531
07,05,2011,8566563
07,06,2011,8484844
07,07,2011,8366875
07,08,2011,8221094
07,09,2011,8090156

compared to 2010

07,01,2010,8806563
07,02,2010,8723594
07,03,2010,8675938
07,04,2010,8592969
07,05,2010,8493438
07,06,2010,8459688
07,07,2010,8429063
07,08,2010,8395938
07,09,2010,8324844
07,10,2010,8276094
07,11,2010,8228594
07,12,2010,8169063
07,13,2010,8130938
07,14,2010,8091719
07,15,2010,8068125
07,16,2010,8025000
07,17,2010,7957031
07,18,2010,7875469
07,19,2010,7766563
07,20,2010,7657344
07,21,2010,7613438
07,22,2010,7558906

2007
07,01,2007,9288906
07,02,2007,9126875
07,03,2007,8925000
07,04,2007,8794063
07,05,2007,8704219
07,06,2007,8611094
07,07,2007,8529844
07,08,2007,8455000
07,09,2007,8369063
07,10,2007,8233906
07,11,2007,8125156
07,12,2007,8015156
07,13,2007,7881250
07,14,2007,7785000
07,15,2007,7690313
07,16,2007,7592500
07,17,2007,7498594