Global Warming

[AC_Hacker]

Originally Posted by Xringer

Seems dangerous to me..


http://volcanoes.usgs.gov/hazards/gas/

Volcanoes release more than 130 million tonnes of CO2 into the atmosphere every year. This colorless, odorless gas usually does not pose a direct hazard to life because it typically becomes diluted to low concentrations very quickly whether it is released continuously from the ground or during episodic eruptions. But in certain circumstances, CO2 may become concentrated at levels lethal to people and animals. Carbon dioxide gas is heavier than air and the gas can flow into in low-lying areas; breathing air with more than 30% CO2 can quickly induce unconsciousness and cause death. In volcanic or other areas where CO2 emissions occur, it is important to avoid small depressions and low areas that might be CO2 traps. The boundary between air and lethal gas can be extremely sharp; even a single step upslope may be adequate to escape death.

Xringer,

I think your sentence structure is really improving!

Before you know it, other people will want to cut & paste the words you write.

Never too old to learn (...how to paraphrase).

-AC

[NeilBlanchard]

Molten rock produces different carbon than burning "new" plants, and also different from burning "old" plants i.e. oil and coal and natural gas. Volcanoes release a different isotope (carbon 13), than does burning of fossil fuels (carbon 12), and wild fires releases a higher percentage of carbon 14 (the radioactive isotope) and since plants have a given proportion of carbon 14, we know that the increase in the atmosphere is coming from burning "old" plants.

The biggest increase of carbon in the atmosphere is carbon 12. And there is a a corresponding decrease in the level of oxygen, as well. So this confirms that the largest cause of the increase is humans burning fossil fuels.

Yet another confirmation is the basic math - there is not nearly enough carbon coming from volcanoes to account for the increase in the atmosphere.

[Xringer]

Neil, Are you mowing your lawn yet? I was just out back for a half hour and that sea breeze is something else!

Normally when it's been warm enough to grow cutable grass,
it's warm enough to mow it, without wearing winter gear..
That jacket was what I was wearing, shoveling out the last snow fall!



Just before noon today, we took off on the bikes for Lexington.
We were going to head up to Bedford and have lunch.
Nope... We got about a mile and turned back.
I worn a t-shirt, long sleeve heavy cotton pull-over, and a heavy fleece pull-over.
And it still Felt like March. No way I'm going on the bike path in May wearing a parka.

I know we get some cold days in May, but it just feels chillier this May..

[Xringer]

Originally Posted by AC_Hacker

Xringer,

I think your sentence structure is really improving!

Before you know it, other people will want to cut & paste the words you write.

Never too old to learn (...how to paraphrase).

-AC

Thanks, It's hard when you get old and your brain starts to die.
Mine was already in bad shape, before I started getting old.
So, now it's a real mess..

Anyways, when they made that chart of the CO2, did they mean for it
to represent the amount of CO2 from the out-gassing lava?

If you read the C&P, it says CO2 is heavy and will flow down hill..




Seems like a bad spot. Working at 11,000 ft isn't easy. Some people will
get altitude sickness real fast that high. But, if there is heavy CO2 flowing around you..
I've seen a few people get altitude sickness working at 6200 feet.. In clean air.

[Xringer]

More man-made warming effects..

Glaciers Visit Izatys Resort - Mille Lacs Lake, MN - YouTube

[NeilBlanchard]

Yup, here's how climate change is affecting fishing all over the world:

Go Fish (Somewhere Else): Warming Oceans Are Altering Catches : The Salt : NPR

[Xringer]

Funny stuff..
Everybody knows that polar bears can't swim!

Global Warming Tour Cut Off By--Wait for It-- Too Much Ice! - Michael Schaus - Townhall Finance Conservative Columnists and Financial Commentary - Page full


Some more funny stuff..

Arctic Ocean predicted to be ice free by 2013 – oops - Wry Heat

Funny pic..


"Nature intervened. Satellite imagery shows that the Arctic has 60 percent more ice now than it did in 2007 for the same date, almost one million square miles more."


Of course, there is no global cooling, it's all just Hackers breaking into NASA.
They photoshopped the Satellite imagery! They just swapped the dates!

[NeilBlanchard]

Nobody predicted ice free Arctic in 2013. The earliest that the trends seem to show is 2015 or 2016 to be ice free in August.

There is not "too much ice" anywhere. The volume of ice in the Arctic is down 80% since 1980.

The trend is still down. 2012 actually was much less than 2007, while 2008-2011 were about like this year.

http://nsidc.org/arcticseaicenews/ch...sea-ice-graph/



http://www.youtube.com/watch?feature...&v=YgiMBxaL19M

Similarly, you have to look at the long term trends for global average temperatures:



Nothing funny about it.

[Xringer]

Maslowski and Team Offer New Estimate on Summer Arctic Sea Ice Disappearance - Polar News - SciencePoles - Polar sciences and research

The model predicts that increasing summer sea ice melt could lead to an ice-free Arctic during at least part of the boreal (northern hemisphere) summer by 2016, with a margin of error of plus or minus three years.

Dr Maslowski’s previous model had predicted the Arctic to be seasonally ice-free in the summer by 2013 – an estimate that many experts criticized.

[NeilBlanchard]

Right, well the August 2016 date is the one I've seen, and it seemed to be -2/+3. I have seen another estimate that says 2015.

These dates are *much sooner* than the estimates from just a few years ago. It was ~2100, then 2050, then 2030, and now 2016 is looking possible. This is worrying, since we now know that the earlier estimates were too conservative, and it seems likely that feedbacks are affecting things earlier than estimated.

Things were already looking bad, and they are now looking worse.