https://www.scientificamerican.com/article/balance-between-co2-and-warming-means-life-or-death-for-trees/ > There’s a climate change conundrum centered on trees. > The debate in scientific circles goes something like this: Plants need carbon dioxide for photosynthesis, and more CO2 in the air can give them a boost. But rising carbon dioxide levels are also driving global warming—and rising temperatures can cause water stress, limit plant growth and increase the risk of die-offs.