Is it possible to believe that our life in this world is all there is and be Christian?

Karl Peters says yes. We can think about God as the creativity of the world. About our life as beginning when we were hydrogen atoms, so that everything is family. About how the evils of sexism, racism, and speciesism (climate change) arose in human history. Peters says that Jesus is fully human. His mother, Mary, was raped by a Roman soldier. And he is savior by being an inspiring moral example of how we should live--loving God completely and our neighbor as ourselves. Through evolution we are related to everything else. Therefore, we should love as family all varieties of humans, other species, and the planet itself.