We show that any L_1 embedding of the transportation cost (a.k.a. Earthmover) metric on probability measures supported on the grid {0, 1, . . ., n}^2 \subseteq \mathbb{R}^2 incurs distortion \Omega(\sqrt {\log n}). We also use Fourier analytic techniques to construct a simple L_1 embedding of this space which has distortion O(log n).