A new paper by renowned Swedish sea level expert Prof. Axel Mörmer published in the International Journal of Earth & Environmental Sciences dumps lots of cold water on the premise that today's sea level rise is caused by man and is unusual.
(Or, if you don't have that much time, you can instead use a quick - soak method: put the beans, lots of cold water, and a generous pinch of salt in a pot, bring it to a boil, turn off the heat, cover the pot, and let stand for 1 hour.