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Profile astroWX
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Message 48217 - Posted: 22 Feb 2014, 20:06:24 UTC

Temperature and other aspects related to global warming (none of which is likely to enlighten skeptics);
a one-page report on continued warming which includes an excellent 14-second 'movie' showing six decades of a warming earth, from NASA:
http://www.giss.nasa.gov/research/news/20140121/

Joint presentation by NASA and NOAA (PDF, slides, some with side-by-side comparisons of NASA AND NOAA findings):
http://www.nasa.gov/sites/default/files/files/NOAA_NASA_2013_Global_Temperatures_Joint_Briefing.pdf
"We have met the enemy and he is us." -- Pogo
Greetings from coastal Washington state, the scenic US Pacific Northwest.
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wateroakley

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Message 48220 - Posted: 23 Feb 2014, 12:28:41 UTC

Met Office UK. The Recent Storms and Floods in the UK. February 2014

http://www.metoffice.gov.uk/media/pdf/1/2/Recent_Storms_Briefing_Final_SLR_20140211.pdf
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Profile Dave Jackson
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Message 48242 - Posted: 28 Feb 2014, 11:49:42 UTC

Interesting piece from the BBC here. It makes re-forestation of temperate climes even more important.

[url]http://www.bbc.co.uk/news/science-environment-26340038 [/url]
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Message 48393 - Posted: 11 Mar 2014, 19:08:18 UTC

I have just watched a doumentary I would like to share with everyone. Most of have of course heard about global dimming but it is amazing to see the changes in the temerature after the airplanes were grounded after 9/11 and again the quick changes when they started flying again.
More scary than amazing what impact it has when we stop emitting aerosoles and other things with the same effect

http://documentaryheaven.com/global-dimming/

Please move this post if posted in the wrong place

Steinar
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Profile Dave Jackson
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Message 48771 - Posted: 11 Apr 2014, 11:50:01 UTC

Not directly climate change but well worth a listen Chief Scientist at the met office in, "The life Scientific" on Radio4 http://www.bbc.co.uk/programmes/b03zr00k
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wateroakley

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Message 48812 - Posted: 16 Apr 2014, 11:21:50 UTC

http://science.nasa.gov/science-news/science-at-nasa/2014/16apr_teleconnections/
NASA Science News. April 6, 2014

Unexpected Teleconnections in Noctilucent Clouds

New data from NASA's AIM spacecraft have revealed "teleconnections" in Earth's atmosphere that stretch all the way from the North Pole to the South Pole and back again, linking weather and climate more closely than simple geography would suggest.

For example, says Cora Randall, AIM science team member and Chair of the Dept. of Atmospheric and Oceanic Sciences at the University of Colorado, "we have found that the winter air temperature in Indianapolis, Indiana, is well correlated with the frequency of noctilucent clouds over Antarctica."

Noctilucent clouds, or "NLCs," are Earth's highest clouds. They form at the edge of space 83 km above our planet's polar regions in a layer of the atmosphere called the mesosphere. Seeded by "meteor smoke," NLCs are made of tiny ice crystals that glow electric blue when sunlight lances through their cloud-tops. ....

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wateroakley

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Message 49506 - Posted: 7 Jul 2014, 8:21:15 UTC

"BBC has lost its balance over climate change"

http://www.thetimes.co.uk/tto/opinion/columnists/article4140381.ece
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Profile Iain Inglis
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Message 49568 - Posted: 16 Jul 2014, 13:07:16 UTC

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Niall

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Message 49730 - Posted: 15 Aug 2014, 2:55:53 UTC

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Richard Johnson

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Message 50066 - Posted: 8 Sep 2014, 12:15:45 UTC - in response to Message 49730.  
Last modified: 8 Sep 2014, 12:22:40 UTC

I personally don't think you are wrong and what you are discussing is certainly plausable. Engineers use a system based on the same principle- Finite Element Analysis- which used a series of points to create a 3D model and springs between these points to represent the stiffness of a material. The finer the "grain" (for use of a better word), the more accurate the analysis of a structural design/ design of an aircraft frame. The same goes for atmospheric analysis. The finer the grain, the more fluid the liquid, the more detail that can be considered and the more accurate the analysis.

I also live in the Fens (East Anglia) and used to get to experience the effects of the jet stream as it moved north every spring and south again every autumn. The changes in weather conditions as this happened would consist of very high gusting winds followed by sudden changes in temperature. The jet stream certainly does have an impact on the UK's weather and the hypothesis that kinks in it could trap a weather pattern locally is certainly plausable.
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Message 50304 - Posted: 25 Sep 2014, 4:58:50 UTC

Sea level rises due to climate change could cost Australia $200b, Climate Council report finds

"You're looking at anywhere from three tenths of a per cent of loss of GDP per year, all the way up to 9 per cent loss of GDP per year," Professor Steffen said.

"That upper scenario is higher than the growth rate of GDP per year, so you're looking basically at staggering economic costs if we don't get this under control."

The Victorian coast, the south-east corner of Queensland and Sydney would be the hardest hit by rising sea levels, the report found.

With more than 75 per cent of Australians living near the coast, Professor Steffen said large swathes of infrastructure were at risk.

"Much of our road, rail, port facilities, airports and so on are on the coast," he said.



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Message 50305 - Posted: 25 Sep 2014, 5:02:54 UTC

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Message 50306 - Posted: 25 Sep 2014, 5:05:58 UTC

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Message 50313 - Posted: 25 Sep 2014, 23:15:40 UTC
Last modified: 25 Sep 2014, 23:18:11 UTC

National Security and the Accelerating Risks of Climate Change

Actions by the United States and the International community have been insufficient to adapt to the challenges associated with projected climate change. Strengthening resilience to climate impacts already locked into the system is critical, but this will reduce long-term risk only if improvements in resilience are accompanied by actionable agreements on ways to stabilize climate.


In other words, "wake-up and smell the roses" before it's way too late!
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Message 50339 - Posted: 29 Sep 2014, 13:04:32 UTC

http://www.cambridge-news.co.uk/Greenland-Ice-Sheet-vulnerable-expected-according/story-23005707-detail/story.html

More on Greenland Ice Sheet. Story also covered in Daily Mail but I chose to ignore that one.
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Message 50357 - Posted: 1 Oct 2014, 20:27:10 UTC


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Message 50375 - Posted: 4 Oct 2014, 1:44:12 UTC

A nice collection of videos and links to various resouces related to climate change can be found here.
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Jonathan Miller

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Message 50527 - Posted: 13 Oct 2014, 14:59:51 UTC
Last modified: 13 Oct 2014, 15:00:31 UTC

Myles Allen, the project leader is giving a talk tomorrow morning, and I've been asked to pass this on to anyone who might be interested. Should be good, as Myles is an interesting and thought-provoking speaker.

Live stream: IPCC AR5: Three numbers that matter, and numbers that matter less than you think
A talk by Professor Myles Allen, Tuesday 14 October, 9 am BST


Watch it live. Tweet using #ecilive

What the IPCC 5th Assessment Report has to say to the negotiators in Paris 2015

This lecture provides an overview of the climate change issue, highlighting what are, in my view, the most important findings of the latest IPCC report and their implications for climate negotiations under the United Nations Framework Convention on Climate Change (UNFCCC). We will focus on three numbers that matter a lot, and mention along the way some other numbers that matter rather less than you might think.

The first important number is 95%, the level of confidence the climate science community now has that human influence is the dominant cause of the warming observed over the past 60 years. I will explain where this number comes from, with a quick (and colourful) introduction to the methods used for 'detection and attribution' in the IPCC Working Group I report, and explain why the apparent 'pause' in ocean surface warming over the past decade or so doesn't really change the big picture.

The second important number is 40.3 degrees C (105 degrees F), the national average temperature high over Australia on January 7th, 2013. While bad enough for Australia, the significance of that 'Angry Summer' for the rest of the world is as an example of the kind of damaging weather event that, subsequent studies have shown, was made substantially more probable by human influence on climate. With the IPCC Working Group II finding that the impacts of climate change on human and natural systems are now evident on all continents and across the oceans, understanding the links between climate change and harmful weather events is becoming important for the UNFCCC's new 'Loss and Damage' agenda, and a key focus of Oxford's climateprediction.net/weatherathome project.

The third number is the big one: one trillion tonnes. That is the total amount of fossil carbon that the IPCC estimates can be dumped into the atmosphere over the entire Anthropocene epoch while keeping the resulting warming to likely less than two degrees Celcius. Over half a trillion tonnes has already been emitted, and accounting for warming due to other forms of pollution cuts down the remaining 'carbon budget' further still. This puts the mitigation challenge into perspective, and helps explain why the IPCC Working Group III report found such a pivotal role for carbon capture and storage in scenarios that have some chance of meeting the two degree goal.

What are the numbers that matter less than you might think? One of them, although much tweeted, is '97% of scientists agree'. I'll explain how this kind of opinion poll isn't really relevant to how science, or the IPCC, actually works. Another over-rated number is the Equilibrium Climate Sensitivity (the subject of earlier climateprediction.net experiments), which turns out to matter much less than people thought. Finally, if you are hoping for a purely scientific argument that two degrees is the threshold for dangerous anthropogenic interference in the climate system, you will be disappointed: the IPCC reports make it clear that the assessment of what is dangerous has an ethical and moral dimension and cannot be resolved by any purely technical assessment.
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Profile Byron Leigh Hatch @ team Carl Sagan
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Message 50932 - Posted: 4 Dec 2014, 4:46:45 UTC

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Message 51258 - Posted: 17 Jan 2015, 10:07:11 UTC

Most fossil fuels 'unburnable' under 2C climate target

Most of the world's fossil fuel reserves will need to stay in the ground if dangerous global warming is to be avoided, modelling work suggests.

Over 80% of coal, 50% of gas and 30% of oil reserves are "unburnable" under the goal to limit global warming to no more than 2C, say scientists.

University College London research, published in Nature journal, rules out drilling in the Arctic.

And it points to heavy restrictions on coal to limit temperature rises.


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