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We establish two-weight norm inequalities for singular integral operatorsdefined on spaces of homogeneous type. We do so first when the weights satisfya double bump condition and then when the weights satisfy separated logarithmicbump conditions. Our results generalize recent work on the Euclidean case, butour proofs are simpler even in this setting. The other interesting feature ofour approach is that we are able to prove the separated bump results (whichalways imply the corresponding double bump results) as a consequence of thedouble bump theorem.

Logarithmic bump conditions for Calder\'on-Zygmund Operators on spaces of homogeneous type