  I discuss our recent work on Green's function Monte Carlo (GFMC) calculations
of light nuclei using local nucleon-nucleon interactions derived from chiral
effective field theory (EFT) up to next-to-next-to-leading order (N$^2$LO). I
present the natural extension of this work to include the consistent
three-nucleon (3N) forces at the same order in the chiral expansion. I discuss
our choice of observables to fit the two low-energy constants which enter in
the 3N sector at N$^2$LO and present some results for light nuclei.
