If the argument being rebutted were correct, we would see 15 ppm jumps in CO2 in years with big eruptions, maybe requiring a couple for hemispheric mixing and a couple more for global mixing but definately very apparent. (illconsidered.blogspot.ru)
Global mixing began centuries ago and the world has struggled with multi-culturalism and immigration since. (blog.politics.ox.ac.uk)
The 6th edition of Art Basel Hong Kong, which closed on Saturday 31 March, brought together a uniquely global mix of 248 galleries spanning six continents. (artradarjournal.com)