Actually not.
When radiocarbon dating is inconsistent, various excuses like 'exposure to ancient carbon sources' is invoked. I believe this was in response to the discovery that some modern shells exhibited ancient radiocarbon dates.
Also, tree-ring chronologies are based on the assumption that you can correlate pieces of wood laying around with each other, that you can correctly count rings (much more difficult than admitted) and that each ring represents a year (often not the case).
Check out "reservoir effect" and "Delta-R" in regard to dating shellfish. This stuff is pretty well known. No way you can stretch the small amounts of inherent error to get young earth out of radiocarbon dating.