Sometimes the term green tea is used to refer to tea with pot mixed in, which is a horrible waste -- as delta-9 THC isn't water-soluble, straining the "tea leaves" out leaves you with a warm-ish liquid that has no psychoactive properties whatsoever (excluding placebo, but you can get that anywhere) and probably tastes like shit as well. Using some fatty milk may alleviate this problem, but if you're going to use milk you might as well leave the water out, right?