Space advocates are often accused of that they are not concerned with the future of our own planet or that they have no solution for terrestrial problems. Of course it is not true that space advocates have no concerns or solution for Earth, only different space advocates have different ideas on dealing with these issues. Save from the direct benefits of space colonization for Earth, the space movement has no single coherent vision for solving terrestrial problems. However, this does not prevent space advocates from developing and discussing ideas in this area.
On Republic of Lagrangia we have posted several posts on several terrestrial issues. I will give here an overview.
On energy policy: