39 Trust the science? Any farmers confirm this? (www.newscientist.com) posted 137 days ago by mitmont123 137 days ago by mitmont123 +39 / -0 Spreading crushed rock on farms could absorb 1 billion tonnes of CO2 Putting silicate rocks from mine waste on fields could improve crops and limit global warming, but some researchers question where all that rock is going to come from 42 comments share 42 comments share save hide report block hide replies
It's the shade, and the acidity of the leaves that drop every year.
Indeed. Soil's pH is embarrassingly low. The amount of leaves and acorns dropped cannot be measured.
Plus, all of the tannins in the leaves/acorns stain everything left beneath the trees for even a few days.
I'll take the trade-off in the natural cooliing of the house every summer!