Other than trading, how do I go about getting more water? Will claiming coastal tiles give me extra water? As a plains nation I find it hard to believe that I am this lacking in water. Desert, yes, but plains? I thought I just had a bad roll for my starting province which is why I expanded as fast as I did in hopes of getting better lands that could support me.
That said: anyone want to trade some EP for water (and food)?
Lakeside provinces provide +3 water, forest +1, and jungle +3.
After some techs are available, it'll be easier to get water, but you'll also have higher populations...
But, yes, the primary way is expansion or trading.
Coastal tiles (meaning water, not land next to water) provide 2 food, rather than water.
Also note, you have the 2nd largest population, so you will have a harder time (given that the largest is lakeside and near jungles)