Free-Air Concentration Enrichment studies such as soyFACE artificially raise CO2 (among other variables) and monitor plant response. SoyFACE, as the name implies, is focused on soy, an important food crop. Imagine a crop field surrounded by CO2 sprayers and heaters to simulate elevated CO2 and its effects.
Findings from the experiment include that increased temperatures will likely reduce yields of soy, even at elevated CO2. Higher average temperatures also increased susceptibility to herbivory by the Japanese beetle.
A related meta including 228 experimental observations found that barley, rice, wheat, soybean, and potato all have lower protein content at elevated CO2.doi: 10.1111/j.1365-2486.2007.01511.x
14 years of publications can be found here: http://www.igb.illinois.edu/so...
In short: even if water use efficiency were to increase, that does not result in increased yield, or crop quality.
If timescales didn't matter your point would have some relevance. Zero sum over millions of years has a vastly different real world effect from zero sum over a growing season.
Zero sum over long time scale (burning coal) means an increase in atmospheric greenhouse gases, year over year. The fact that no Carbon was actually destroyed or created in the process is irrelevant here.
If you want to go down that road, let's just skip straight to "universe started, universe will end, nothing in the middle matters."
Well, the temperature that maximizes biodiversity across the planet.
Could you expand on why "biodiversity" ought to be the goal? If I had to pick something, I'd have picked "comfort of humans" or, perhaps, the humans' longevity or something like that.
Why do you pick "biodiversity"?
Maximizing biodiversity is a decent goal to have high on your list. The more organisms there are, the more resistant a given system is likely to be. If you've got one species of tree in a forest and beetles come and wipe out that species, you're in trouble. If you've got high biodiversity, you're more likely to have less trees that will be affected, plus a better chance that there's somebody that calls the beetle dinner.
Why should humans care about resilience? We derive a lot of services from natural systems. Protection from extreme events (flood, fire, insects, etc); diverse food stocks; tourism; unique chemicals for pharmaceuticals; groundwater purification; local weather stabilization; and so on. Even if you don't "like" nature, you derive a tremendous number of services from it. The best way to maintain longterm comfort/longevity of humans is to make sure those systems continue to be able to perform those services.
Because nobody Rs TFA: This was found in Carlsbad, closer to San Diego than LA -- any chance we can skip the Encino Man jokes? Please?
Does [anyone else] find that this [summary] is (a bit) hard to read? The (highly)-disjointed nature gives [me] a "headache" ((H)-DNGMAH).
Not only was science not "wrong," but if science was wrong there would be no story. The science says that this was a statistically improbable event. If the science was wrong, this would happen all the time and the fact that it happened again wouldn't be newsworthy. So not only is this the dumb clickbait that we know it to be, but contradictory to the whole premise. No internal logical consistency; complete garbage.
Summary is misleading. Nye basically says US as a whole is failing when it comes to educating average people about science. He admits that, sure, we have top top-tier institutions and scientists, but we need to do a better job educating the average person.
Hardly the swipe aimed specifically at Slashdotters that TFS makes it out to be. Furthermore, if we use
I'm excited to see data from this and the atmospheric CO2 satellite which was launched (again) not long ago overlayed. Seeing how CO2 and soil moisture correspond is important for understanding limitations on microbial communities which make up a large part of the global carbon budget. It will be particularly interesting to measure changes to how these correspond over time -- it'd be a great way to get solid data for future modelling and for quantifying changes currently happening.
Also particularly interesting is the ability to monitor changes as a result of permafrost thaw globally. There's currently some discussion whether and where permafrost thaw will be a net C sink or source. Throw in some data from a Leaf Area Index satellite (which is/are also in orbit currently) and you've got some pretty compelling global/landscape data.
Nonsense. Space is blue and birds fly through it. -- Heisenberg