Luke

i bet a few of them are Welsh. Find a "cause" and you will find Welsh People for sure.

stiscooby

One of the warrior types made some comments during an interview on the news saying "most people who take these flights can probably go by train anyway and are just 'going to work' ".

What the **** are they on??

jonc

The police should have rounded up the protesters, who incidently have either just come back/ plan to take a gap year for bit of travelling and back packing around the far east, etc, and sent them to the departure lounge. Then let them attempt to "educate" those people who were delayed by the protest. Then if they;re still alive, allow them to remain carbon nuetral by letting them walk to the nearest hospital.

billythekid

Kin hell, some space cadets just back from camp....

Lets take you in turn...

Hmm, I suspect you might want to re-think that statement my good man and look up the word "context". CO2 has been on this planet for most of its existence. We all agree, good. However, too much... and its good night Vienna. Do I really need to explain the greenhouse effect in context to the carbon cycle to you? No? Good.

This is too easy...

Next.

Mr Scunn...

Did you miss that little word that I typed with my fat pie gravy coated fingers? It was "total". Thats right, scroll up to check... total thats right like the tooth paste.

So, at last count the last total ice age (i.e complete coverage thus bringer of death to every square inch of the planet) was about 800 million years ago.

This took somewhere between 5 and 10 million years to happen, although some dare I use the word on here.... oh go on, some "scientists", say upto 50 million years. Similar time frame to "undo" the process, funnily enough using large amounts of CO2 and Methane to create a "greenhouse effect" as mentioned above...

High Obliquity.... this hypothesis has been put at the very bottom of the list I am afraid, its even below "it might have been superman’s evil brother" and also below "god needed a vacation". Sorry.

Now where did I put that pie...

scunnered

iTrader: (1)

You're talking about the Cryogenian period, which if my memory serves me correctly is the subject of much scientific controversy. It has not been established beyond reasonable doubt that it was a complete "snowball earth" and not just a few major localised events. Its not known what the cause of this major ice age was, but it has been widely attributed to a combination of orbital variation and solar activity causing unusualy large ice sheets. The ice sheets will reflect the heat from the sun, making the surrounding earth cooler as a result. So the ice sheets get even bigger until the majority of the earth may get covered. You're correct about the greenhouse gases that ended it though, I believe was attributed to high volcanic activity.
Currently we are in the Holocene period which started approximately 11k years ago, and is an interglacial (warming) period (ice age=glacial). It used to be the consensus of opinion that these interglacial warming periods lasted for about 12k years, but there is some indication that some have lasted as long as 28k years.
Anyway, I'll never believe for a second that we humans could cause global climate change. Its a totally natural phenomenon. We humans may contribute towards it as much as the turbulence of a sparrow farting in a field half a mile away, causes me to lose a bit off my top end speed.

What kind of pie were you eating, was it "humble"?

Klaatu

LMAO, now that's a laugh! Well, below 2% it is...and it's NEVER been above 2%...EVER..in the history of the planet.

Klaatu

Highest concentrations of Co2 have been at 1bout 1.9% TOTAL (Carboniferous period). Methane, not even registers. Water vapour on the other hand...

billythekid

So the study carried out from about 1999 to 2002 that shows CO2 at somewhere around the 4% to possibly upto 15% level around the late Neoproterozoic is just junk for the bin? Even if some open water was avaliable, the CO2 levels would have to be much higher to kick start melt back.

Or are you saying its possible to start melt back of a global ice sheet without increasing CO2?

At the end of the day we are talking about the Proterozoic which is a loooong time ago, and its definate there were several very large events involving ice, probably even a total ice age.

To take the planet into the Phanerozoic what would be required? You tell me.

Leslie

I have told you more than once where to find that Martin, but you don't seem prepared to look at something which just might contradict your ideas about GBW. In all honesty you should be prepared to look at all sides of the question of Earth's temperatures instead of just accepting the bits that suit what you want to believe.

Les

Martin2005

You think I WANT TO BELIEVE we are in for major climate change?

Plus it's not 'my idea' about GW, it's the view of 99% of the scientific community after what must be he biggest and longest study in the history of mankind, why on earth do you put so much stock in the 1% of have an alternative view?

Please humour me and tell me again where to find the truth about GW. Also you keep saying the Earth has stopped warming (again and again in fact), show me the evidence of this.

Martin2005

sorry 99.9%

Ted Maul

snooker ball in a sock anyone

since when is it illegal.....

scunnered

iTrader: (1)

I'd like to answer this one.
I wrote something above which refers to the Holocene period which we are currently in. This may come to an end in about a thousand years or so. The earth cycles between glacial (cooling) and interglacial (warming) periods. Holocene is interglacial.
There have been however a few glitches during this warming period such as during the middle ages when there were very severe winters for example.
There is no evidence that the earth has stopped warming. Such evidence cannot be gathered in just a few short years. It has to be measured in hundreds or even thousands of years.

jonc

The protesters at the airport have really lived up to their name. Plane Stupid said the disruption to flights would prevent "the release of thousands of tonnes of greenhouse gas emissions into the atmosphere". No, it merely delayed the release of emissions as normal flights will resume again, and even have increased as airlines increase the number of flights to reduce the back log of delayed flights. Add to that the CO2 released by the Stupid protesters in getting to the airport who might have other-wised stayed at home watching daytime TV and all the police vans and cars and air port vehicles used to haul them away.

Klaatu

Check out what ~380pp of CO2 (That includes the ~100pp increase since the industrial revolution began which is believed to be split, 70/30, between human and natual emissions) is in terms of a percentage of the whole weight of the atmosphere. Is this anywhere near 4%?