How to use a cloud texture?

Hello, I was just checking out material nodes and decided to make a earth, then, I went to a website and then I downloaded earth albedo map, earth normal, specular and clouds, I know how to your everh map except that clouds map, this is the image

It has got a black background, I used it as an overlay map but kt didn’t quite work out, can anyone send me a pic of a node network of how to use this texture? Thanks

And pls dont move this thread to the blender topics, becuase I am using upbge 2.2,which is like blender 2.79 and no other people except this thread use blender 2.79 now, so pls don’t move it to any other channel, thanks