This is a good way to visualize the relative latitudes of Europe with North America. It’s an important consideration for U.S. hemp farmers using European seed, especially varieties which are bred, developed, and certified for performance at the maintainers’ latitude (photoperiod not autoflowers).
Moving even one degree south changes performance. Using Polish seed 10° south in Texas? Might be a problem. Southern California has more in common with the hash fields of Morocco than the hemp fields of Ukraine. Click here to read more on it.
And here are the relative latitudes of the U.S. and China. Its hemp area (Harbin) is similar to Canada, and it’s marijuana area (Guangzhou) is similar to Mexico and Jamaica: