They do have a significant effect. Trees scoop up rain from the soil, lift it through their trunks and up into the leaves where little mouths (stomata) in the l

They do have a significant effect. Trees scoop up rain from the soil, lift it through their trunks and up into the leaves where little mouths (stomata) in the leaves deposit that water back into the air in a process called transpiration. It is actually in this way that places deep inland can still receive rainfall. Without this process clouds wouldn't be able to make it far inland.