Chart: The growth of forest trees in temperate and boreal regions became more limited by water rather than temperature as the 20th century warmed. The more orange-red the area on the map, the more tree growth in that region became limited by water availability. The bluer the area, the less water-limited the trees became. Credit: Flurin Babst, Swiss Federal Research Institute WSL, Zurich
The growth of forest trees all over … [more…]