While only recently discovered to have a net cooling effect, their impact on climate is quite variable since the balance between the cooling effect by reflecting sunlight to space and the warming greenhouse effect depends on the cloud height and thickness.
(the balance between the cooling effect by reflecting sunlight to space and the warming greenhouse effect; depends; on the cloud height and thickness) (their impact on climate; is; quite variable; since the balance between the cooling effect by reflecting sunlight to space and the warming greenhouse effect depends on the cloud height and thickness)
the balance between the cooling effect by reflecting sunlight to space and the warming greenhouse effect their impact on climate
depends is
on the cloud height and thickness
quite variable since the balance between the cooling effect by reflecting sunlight to space and the warming greenhouse effect depends on the cloud height and thickness