<p><pre><code>   The study itself concluded that the decline 
   of plant proteins in the face of soaring carbon 
   dioxide concentrations provides an “urgent and 
   compelling case” for CO2 sensitivity in pollen 
   and other plant components.
</code></pre>
I wonder if that pollen with significantly reduced protein would also affects human allergy, as it&#x27;s very common these days. (Not sure if were common a few decades ago, but I am skeptical.)<p>Love to hear someone with expertise in this to chime in.