It may seem anomalous to think of a 3000+ year-old tree accelerating. But that’s what’s happening to the redwoods (sequoias) growing along the California coast.
Scientists study tree rings from cores deep into the trees. I sure hope they know what they’re doing–I’d hate to think of inadvertent damage, or allowing pests into a three thousand-year tree. On the other hand, I suppose a tree that old has seen anything that could happen. Some of these trees are so large they even have giant Douglas firs growing out of them, up in the canopy.
So why are these trees growing faster? About a 100 years ago, their tree rings showed greater growth of wood each year. Then more recently, the acceleration has increased even more. The growth appears to correlate with increasing temperature and CO2 due to global climate change. It’s just a “correlation” yet–but is consistent with other findings that plant growth accelerates with temperature and CO2, providing they get enough water and other nutrients.
So is this a good thing? Maybe, for these trees, for now. But higher temperatures lead to drought and pest infestations. Alaska is dealing with pest infestations in a tragic way, and Africa is losing trees to drought.