Trees can grow to towering lingyun but are still lush and green, relying on xylem ducts to transport water absorbed by the roots to the treetops. According to the latest research results, botanists have issued a warning that some regions due to climate change It threatens the supply of groundwater, and also damages the xylem's ability to transport water, putting the forest in a dangerous state. Researchers say that under drought conditions, trees will try to absorb water from the ground, and in the process, there will be too much Many air bubbles that will be sucked into the xylem. When these air bubbles are blocked in the duct, they will block the water supply and cause the tree to die without water. According to this text, the latest findings are:. ['The thicker the xylem of a tree, the better it is for water supply.', 'Extreme weather can break the biological structure of tree xylem.', 'Humid climate conditions are more conducive to the growth of towering trees.', "The presence of a large number of air bubbles in the duct will block the tree's water supply."]