Google has recently been sending out warnings to AdSense publishers who serve content to the EU that they will receive a violation if they are not serving these

Google has recently been sending out warnings to AdSense publishers who serve content to the EU that they will receive a violation if they are not serving these cookie notices. This accounts for the seeming uptick in cookie notices. To my knowledge, Google has not enforced this in the past. My solution was to use CloudFlare to get geotags and PHP to serve the warning to only to those who live in the EU, but to each his own.