by strong winds and the tree too weak because it grew too fast
“higher CO2 levels are making trees weaker, according to several studies:
Trees are growing faster due to increased CO2 levels, but the wood produced is less dense and weaker.[2] A study found that wood density decreased by 8-12% in four major tree species in Germany over the past century as CO2 levels rose.[2][3] Lower wood density means the trees are more prone to breaking from storms, wind, gravity, etc.[3]
The reduced wood density also corresponds to a lower carbon content of around 50% less.[2][3] This suggests trees are less efficient at absorbing and storing atmospheric CO2 as they grow bigger.[2]
Additionally, faster growth rates have been linked to shorter lifespans for trees, compounding the issue of weaker wood.[3] While rising CO2 boosts photosynthesis and growth, the tradeoff appears to be producing weaker, flimsier trees that are more vulnerable to damage and early death.[2][3]