Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Politics : The Environmentalist Thread -- Ignore unavailable to you. Want to Upgrade?

To: Wharf Rat who wrote (6982)	7/12/2006 11:04:48 AM
From: Peter Dierks	Read Replies (1) \| Respond to of 36917

But that is the wonderful thing about people like you. You may disagree with me, but you are willing to consider my perspective and take the time to help me understand yours. From your posts I am able to learn. I am still on the steep part of the learning curve on the subject. /Am I incorrect in assuming that a warmer climate would make more land arable? Isn't the little ice age what almost killed the middle ages migrants to Greenland? They migrated while the land was arable and then the little ice age made most land too cold to grow crops. University of Nebraska is not widely considered to be a leading center of research. The guy referenced by the original article is an assistant math professor at the university: Rising atmospheric CO2 and human nutrition: toward globally imbalanced plant stoichiometry? Irak!i Lo!adze (Trends in Ecology and Evolution, 17, 457-461) Terrestrial vascular plants obtain their major constituent — carbon (C) — from atmospheric carbon dioxide (C02), but draw all other chemical elements largely from the soil. Concentrations of these elements, however, do not change in unison with steadily increasing concentrations of CO2 1C021. Thus, relative to pre-industrial times, modern plants are experiencing a global elemental imbalance. Could this imbalance affect the elemental composition of plants, the most important food source on Earth? Apart from an overall decline in nitrogen concentration, very little is known about the effects of high [C02] on other chemical elements, such as iron, iodine and zinc, which are already deficient in the diets of the half of human population. Here, I apply stoichiometric theory to argue that high 1C021, as a rule, should alter the elemental composition of plants, thus affecting the quality of human nutrition. The first compilation, to my knowledge, of published data supports the claim and shows an overall decline of the (essential elements):C ratio. Therefore, high 1C021 could intensify the already acute problem of micronutrient malnutrition. ... math.unl.edu