LF01 Our Local Future: Climate Change, Peak Oil & The End of Money

[IAmFurrret]

Hey Thats My School Teacher. Time To Troll.

[mphello]

None of this tells me: how am I supposed to get from North America to Europe or India if I want? Affordably?

I support War for Animal Rights, War to Free Prisoners, and War for the Environment. But, nobody - especially those in this grow-local ideological camp - has explained how one can PRACTICALLY pick up and leave and move to another country far away, which is becoming more and more necessary in this world.

[newculture]

The issue isn't whether CO2 is "good" or "bad".

The issue is the amount in the air and the oceans. Too much CO2 in the air, and we push the climate into a "super-warm", and we may do it so quickly that it will prevent us from growing enough food, particularly in the USA.

Too little, and we go into an ice age or worse.

[123ziran]

While the year on year increase question is getting cleared, I got a new question regarding the annual cycle. You explanation to the annual fluctuation is that the Northern Hemisphere has a lot more green stuff, largely following the lines of wikipedia. I think for this particular graph with its data collected from a station at Hawaii there is another plausible explanation that the air exchange between the Northern Hemisphere and the Southern Hemisphere is not fast enough.

[123ziran]

I think the two forces both have a play in here. We need to check the data collected from a Southern hemisphere station. If the southern data annual fluctuation flows the Northern Hemisphere's growing season, I would be convicened the more green stuff theroy is indeed the main driving force in this graph. Other wise, I would believe the slow air exchange would be the main reason.

[123ziran]

Although there appears to be a detectable acceleration in the rate of CO2 concentration increase, I am still surprised that acceleration appears to be insignificant. Have you compared the estimated human CO2 emission each year in the 60s with the latest estimates?

[newculture]

Interesting observation.

There are two primary additions to CO2: burning coal and petroleum.

There are two primary deductions: oceanic absorption and plant absorption.

What I notice is that the rate during the 60's would have put us at 360 ppm in 2010... but the rate of the 1990's would put us at 380 ppm by 2010... so the rate was definitely accelerating.

I suspect a climatologist that studies CO2 levels would have a lot better answer. Wikipedia's on CO2 might be a good starting point.

[123ziran]

The CO2 concentration starting at the starting year 1958 is estimated at 316 ppmv with an increment of 0.6 ppmv each year. The increment rise to 0.7 ppmv per year between 1960 and 1964. Annual increment went over 1 ppmv per year around 1972. It broke 1.5 ppmv per year around 1982. At the year 2004, the annual increment is about 2.1 ppmv per year.

[123ziran]

Thank you for the guide. From the wiki entry Carbon dioxide in the Earth's atmosphere I found the same graph, which is clear enough to put rough estimated values on corresponding years. The curve is a bit deceptive at first look. When I did my data reconstruction for each and every year, the 2004 annual increment is estimated over three times more than 1958 based on that same graph.

[123ziran]

I also found the graph for historical global fossil carbon emission for the same period between 1958 and 2004. Emission was estimated at around 2.3 gigatonnes carbon in 1958, rise to estimated around 7.4 gigatonnes of carbon in 2004. That is also over three times over the period.

[123ziran]

Hi newculture, I refer to the chart of atmospheric carbon dioxide in the video. From that chart, it can be read very clearly that the CO2 concentration is going upward. However, it appears to me that the rate of increase has not changed significantly. Over the last 50 years, the overall CO2 emission attributed to human activity has increased very significantly.

[permacultureli]

I actually LIKE your clear and simple approach, and the info is given in a very efficient general view. good job.

[newculture]

Thanks, I appreciated it!