Summary:
- The article discusses the "green paradox" - the idea that planting trees in cities can have both cooling and warming effects, depending on the climate.
- In humid climates, trees provide shade and evapotranspiration, which helps cool the surrounding area. However, in drier climates, trees can actually increase temperatures by reducing the amount of sunlight that reaches the ground.
- The article highlights the importance of considering local climate conditions when planning urban greening projects, to ensure the desired cooling effects are achieved.