Yep, I agree about the 10 minutes. It doesn't seem like much to tackle so much need for healing! I do lots of other mind healing work on circumstances in the world too, but I take your point and thought, yeah, why not? so I can't speak for my friends but I will endeavour to do 10 minutes a day for the Earth from now on 
My thought about the "call to service" for the Earth though was that if lots of people do this, over time it has the potential to become quite powerful. Most big things start from small things!
About the need to start with self healing, I agree with you and I work on "inner" healing in a variety of ways, but it seems to me that it's important to take opportunities to work in outward ways as well. It is all so linked together. I think that working in an inner way on "self" helps to heal the external manifested world, but also working on the external world assists to heal the inner/self.

My thought about the "call to service" for the Earth though was that if lots of people do this, over time it has the potential to become quite powerful. Most big things start from small things!
About the need to start with self healing, I agree with you and I work on "inner" healing in a variety of ways, but it seems to me that it's important to take opportunities to work in outward ways as well. It is all so linked together. I think that working in an inner way on "self" helps to heal the external manifested world, but also working on the external world assists to heal the inner/self.