Californias almond production industry needs absurd amounts of water. And yeah, it's really gross in hot beverages. Oat milk only works for me in porridge, I prefer plain soy milk in tea and coffee. Nothing but soy beans, water and a little salt.
it also takes like 10 years before a tree starts nutting... it's absurd... cow farts are better for the environment than that... and there are foods you can feed cows so they don't fart nearly as much as normal.
Also almond milk is gross. Oat milk for the win!