The phrase "little ambiguity" means that there is very little confusion or uncertainty in understanding something. It is clear and easy to interpret. Full definition
While the authors note the uncertainties and limitations of contemporary climate models — particularly around the timing and intensity of impacts — there is little ambiguity about the responsibility of the oil industry. (climatefiles.com)
There's little ambiguity over the health insurance issue, but our battle to keep large banks out of real estate is a bit more complicated. (realtormag.realtor.org)
Rice also demonstrated how he struck Palmer, however, and apparently there was little ambiguity in his actions. (sbnation.com)