Long life of c02 going to have additional c02... phase out coal by 2030 because of finite volume of gas we could get back to 350ppm. (dotearth.blogs.nytimes.com)
And at this point we are really talking about singularities and mathematical daemons that produce infinite volumes within finite areas or finite volumes within infinite areas. (religion.blogs.cnn.com)
One end is infinitely long, but so narrow that it has a finite volume. (newscientist.com)