btresist’s Activity

Today

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btresist replied to the Climate Change board. 1:41 PM

Re: zero-sum game

Thanks. One of the factors that may be complicating predictions of crop yields under changing climate conditions is the level of soil organic carbon (SOC), often found in the form of humus. SOC levels are largely dependent on soil microbes that [more]

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btresist replied to the Climate Change board. 9:25 AM

Re: zero-sum game

I'm sure technology dominated. My point is that the next 50 years will have the same ingredients as the last 50...

Great! We all agree that technology is what has and will be increasing crop yields. But let's return to the theme of [more]

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btresist replied to the Climate Change board. 9:07 AM

Re: zero-sum game

Unless I missed something, that study didn't look at increased CO2 rates as temperature increases, seems to be a very limited conclusion since even within their own study of 2 factors they get confounding results, throwing in CO2 and they may get [more]

Yesterday

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btresist replied to the Climate Change board. 12:54 PM

Re: zero-sum game

It seems we all agree that CO2 leads to higher yields.

The complicating factor is that climate change also affects insects and there is evidence that insect growth rates may be increased more than plant growth. Climate change may [more]

Sat Apr 30

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btresist replied to the Climate Change board. 4:52 PM

Re: zero-sum game

We do have historical data, which include the results of a warming climate, higher CO2, greater use of fertilizer, etc. For example, since 1960 the average yield per acre of corn in the US has increased from 55 to 150 bushels per acre. During this [more]

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btresist replied to the Climate Change board. 4:04 PM

Re: zero-sum game

So your theory is that weeds can more efficiently take advantage of a CO2 increase than non-weeds? I don't buy it.

There is no assumption that weeds do better than non-weeds. They are just affected in the same way. Weeds reduce yield [more]

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btresist replied to the Climate Change board. 10:18 AM

Re: zero-sum game

An increase in plant life means the increased growth is greater than whatever insect damage increase is happening.

That would be true if we are at equilibrium. Don't think that is case. Anyway, my point isn't that planet isn't [more]

Fri Apr 29

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btresist replied to the Climate Change board. 6:24 PM

Re: Increased CO2 reduces protein

Soule and Knapp examined tree rings in ponderosa pines and douglas firs. They determined that since 1850 (over 150 years) the trees had experienced exponentially increasing water use efficiency due to "either increased net photosynthesis or [more]

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btresist replied to the Climate Change board. 6:16 PM

Re: zero-sum game

The studies that measured real-world increases over decades incorporate the complexities of nature.

Don't know if you've had much experience with trees but decades are a pretty short time period to assess the behavior of a forest. [more]

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btresist replied to the Political Asylum board. 5:25 PM

Re: Voxplaining Liberal Smugness

I, for one, am now firmly committed to voting for Trump.

I've had enough of being told what I will think, and how it's going to go, and that I'm too uneducated to form a correct opinion. I'm sorry, but it's about goddamn time for smug ass
[more]

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btresist replied to the Climate Change board. 8:53 AM

Re: zero-sum game

DrBob has posted about 15 or so articles in the last couple weeks.

As mentioned in other posts. DrBob only links articles that talk about increased plant growth. He avoids articles that discuss increased pest damage and increased [more]

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btresist replied to the Climate Change board. 8:41 AM

Re: zero-sum game

Dr. Bob bolded: ...this study showed that savanna trees were essentially CO2 starved under pre-industrial CO2 concentrations, and that their growth really starts taking off at the CO2 concentrations we are currently experiencing.'

Not [more]

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btresist replied to the Climate Change board. 8:23 AM

Re: zero-sum game

The AR5 tells us that a doubling of CO2 will result in a 20-25% increase in net primary productivity. So we have greater input, and the whole system runs at a higher level. New equilibrium levels are reached, and some ecosystems change. For [more]

Thu Apr 28

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btresist replied to the Political Asylum board. 3:36 PM

Re: One way Trump's better as the 2016 Nominee

The convention is going to be packed with people who love everything republican - which is why everyone was so confident that Trump would lose (and lose big) on a second ballot. Most delegates are local party officials and volunteers and donors [more]

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btresist replied to the Climate Change board. 2:44 PM

Re: muller classifies climate thinkers

It will be interesting to see an update to see if the '07-12 pattern continues or if things revert to the earlier 'in tandem' pattern

Sorry, forgot about the tandem pattern. That could just be a 4-5 year lag between Gulf Stream [more]

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btresist replied to the Political Asylum board. 2:35 PM

Re: One way Trump's better as the 2016 Nominee

Watch the RNC speaker's schedule to see who gets a good spot.

I'm curious to see what republican would want to speak at a convention packed with people who seem to hate everything republican.

NL

Boards Post

btresist posted to the Political Asylum board. 2:05 PM

3rd party?

Any chance Cruz-Fiorina hate Trump enough to run 3rd party? If Cruz really wants to be seen as the non-establishment outsider, this is his big opportunity.

[more]

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btresist replied to the Climate Change board. 11:58 AM

Re: muller classifies climate thinkers

Well, that's the problem. I don't see an acceleration in the Annapolis data. Since 1990 the rate has bobbled above and below the long-term (since 1930) average of 3.5mm/yr.

The Atkinson graph shows an acceleration only from [more]

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btresist replied to the Climate Change board. 10:45 AM

Re: muller classifies climate thinkers

Correct; there has been no acceleration. Sea level rise there is still 3.5mm/yr. However, Atkinson put an upward pointing arrow on the graph and labeled it 'acceleration in sea level'. The blue line for Annapolis over the five years from 2007 to [more]

NL

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btresist replied to the Climate Change board. 10:29 AM

Re: zero-sum game

A lot of observations say otherwise.

Feel free to describe those observations.

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