Averagesupernova said:
I always have to laugh at the discussion of whether or not it is more efficient to farm today as opposed to 50 to 60 years ago. Efficient to whom? Look at all the work and processing that goes into manufacturing the tools that farmers have at their disposal today compared to years ago. Many people act as if that one farmer with 10,000 acres is doing all that himself. Even if only a handful of people help him actually do the work he still has a tremendous amount of people behind him supplying him with the things he needs to go over 10,000 acres. Back when horses were used to farm with a farmer could pretty much survive independently while needing to purchase very few consumable supplies as opposed to today. So what's the difference? More people were farming and less lived in the cities supplying ag with the supplies needed today.
Don't blame those farming the way they are today because you or your ancestors decided to move to the city and make it more profitable for those who stayed in it to do it the way they are doing it now.
I haven't read all of the meandering of this thread, but I need to point out that farming efficiency has never been about bushels (or whatever) per man-hour, but bushels per
acre.
Bushels per man-hour matters to those in the farming industry because its what is driving the move to bigger farms. But bushels per acre is what determines how big of a population the US (or the world) can sustain.
HERE is a random Google'd graph showing the tons per hectare yeild of wheat and barley in the UK in the past 50 years: both have more than doubled. I think for the west, efficiency will probaby start to level off soon (you can't do much beyond genetic engineering), but its a long time before modern farming techniques penetrate the 3rd world.
Dayle Record said:
People are starving all over the world. Growing organic in the USA has nothing to do with people starving in the world.
True, people are starving because of economics and politics, not because we can't grow enough food to feed them. But GM food is a big issue for that. The US as part of an aid package tried to give some GM drought-resistant grain to a country in Africa (Etheopia?) and it was rejected because of an unwarranted fear of GM crops. They chose to let their people die instead of feeding them.
Of
course the economics of GM food are favorable toward pharmaceutical companies. That's capitalism and there is nothing wrong with it. But it is also
fact that the economics of GM food is favorable to
most farmers. Flat out - GM food is
better than so-called organic food.
The world needs to get on the same page regarding food supplies, and energy use, and human rights, and the life of the planet. When the US didn't sign the Kyoto Protocol, we proved that we do not have the interest of the world, at heart.
Kyoto wasn't about "getting everyone on the same page", it was about
punishing the US for our prosperity. It was heavily lopsided and unfair. I'm in favor of improving our pollution situation, but Kyoto wasn't the way to do it.
All of the heat that the biomass creates counts, all of the heat that we generate, counts, everytime a plane takes off, everytime we heat up the ionosphere, everytime we turn on a light, it counts, because this is heat created in side our relatively small, closed system. There are ways to deal with the methane produced by feedlots, there are ways to deal with everything, but this kind of tuning is overwhelmed by the other huge planetary moves we make. In a closed system everything counts. So getting ballistic with me over the heat created by nuclear, vs the heat of the sun, is just how you have fun on the web. In a closed system, everything counts. As random as the output of the sun may seem, or as many variables may be noted in the fluctuations of our fluid planet it is still a closed system. We inhabit a very rare niche, of a universe that we are currently combing for signs of other habitation.
Ok, I thought that's what you meant. I wasn't making fun of you, you simply have no idea what you are talking about -
correcting you is not making fun of you. You simply don't understand the thermodynamics here. Yes, it
is a closed system, but the term "closed system" doesn't mean what you think it does. "Closed system" means energy is
not coming in or going out. You can say the system (the earth) is closed except for solar radiation (and the corresponding earth-radiation), but the rest of the system is closed and the things we do (with the exception of screwing with that solar radiation balance) do
not add heat to the system.
For example, People give off about 70w of heat - is that new heat to the biosphere?
No. We get the energy for that from
the sun via the food chain
as does every other animal in the biosphere.
Four caveats though:
-Oil and coal are energy from the sun stored for millions of years. So that's solar radiation that the Earth got a millions of years ago, being released today.
-And nuclear power is nuclear energy that is currently being released faster than it would if it were left to decay naturally. But as the calculation I suggested you do would show you
neither of these account for even a hundreth of a percent of the energy added to the Earth by the sun.
-The Earth also gains energy due to tidal forces.
-And fourth (and most importantly), the Earth is still radiating energy
faster than it receives it from the sun.
Dayle Record, I have no idea where you got the idea that humans were actively heating the Earth - maybe you just misinterpreted global warming - but its just not correct.
Check this out, chemical vs organic. The chinese use twice as much fertilizer on their new fruit and vegetable crops and the land is dying, the water quality is rapidly declining, and so forth...
That's twice as much fertilizer
as we do in the US. You left that part out. That means that its not the fertilizer that's at fault, its the Chinese farmers
that are using it wrong. That's why the Chinese are having a problem
and we are not.
Dayle, as always, my biggest complaint with you is that beyond just being ignorant of the facts (mostly regarding science) that support/refute your opinion, you seem to be
purposely ignorant. That quote above seems like a purposeful deception. I'm not suggesting you are lying - indeed, it appears you may not even be aware of it - but your bias is clouding your understanding of the issues you feel so strongly about. You are coming to the wrong conclusions because of your preconceptions.