I came back from a trip to Guatemala last week with two missions: Learn Spanish. And plant some banana trees. Even before I left the States, my future course had started to take shape — 70 percent of my neighbors are Spanish-speaking. And I'd run into a guy at Les Beans coffeehouse, one of our local environmental activists and an inveterate recycler, who'd told me that banana trees thrive on graywater (i.e., the mildly dirty sink and bathwater we usually send... More >>>