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Ziska devised an experiment that eliminated the complicating factor of plant breeding: He decided to look at bee food.
Goldenrod, a wildflower many consider a weed, is extremely important to bees. It flowers late in the season, and its pollen provides an important source of protein for bees as they head into the harshness of winter. Since goldenrod is wild and humans haven’t bred it into new strains, it hasn’t changed over time as much as, say, corn or wheat. And the Smithsonian Institution also happens to have hundreds of samples of goldenrod, dating back to 1842, in its massive historical archive—which gave Ziska and his colleagues a chance to figure out how one plant has changed over time.
They found that the protein content of goldenrod pollen has declined by a third since the industrial revolution—and the change closely tracks with the rise in CO2. Scientists have been trying to figure out why bee populations around the world have been in decline, which threatens many crops that rely on bees for pollination. Ziska’s paper suggested that a decline in protein prior to winter could be an additional factor making it hard for bees to survive other stressors.
Ziska worries we’re not studying all the ways CO2 affects the plants we depend on with enough urgency, especially considering the fact that retooling crops takes a long time.
originally posted by: chadderson
1. Monsanto (traceable in 8/10 breastfeeding mothers - glyphosate)
2. Bisphenol-a (traceable in 95% of western human urine - plastics)
3. Those pushing man-made climate change are keeping us from the real issue, Environmental Conservation
originally posted by: Noinden
a reply to: MartinD28
Ummm we make experimental pharmaceuticals. Probably you name it, we use it. Mind you we also are regularly tested, and were appropriate protection. None the less, I could not (and for confidentiality) should not list them.
originally posted by: evc1shop
originally posted by: rickymouse
Too many Avacados.
The governments of the world have been trying to reduce world population for a long time, just because most people do not believe this doesn't mean the practice is not in play.
They have employed many different tactics to lower US population. If you subtract all immigration and their kids from our population statistics you will see that the population is actually lowering here in the USA. It would be way more evident if they were to stop letting so many people move in. The influx of immigrants does not actually hurt the population reduction figures, the way it is written is on the ones in your country, not those immigrating. People are so clueless as to what is happening.
I was thinking its too much Red Bull, Oh the irony of the strong bull Seriously, I see so many guys drinking it like water. A lot of those energy drinks have become quite popular these days and would be a good delivery system since they taste a bit weird anyhow and mask the chemicals or Taurine etc.. that they put in them. My guess would be energy drinks...