Thirsty? Peddle! Peddle! Peddle! And aren’t these merry-go-rounds notoriously dangerous? Talk about sweat labor. Counterproductive exaggerated negativity aside, I suppose this is an earnest effort? My concern is the exploitation of human energy. We may see this as fun. But how many spins on the roundabout in the blazing sun would it take before playtime became yet another grueling chore? There is a lot of interesting progress on the solar and wind energy fronts. I’d like to learn more about these efforts. How is funding for these projects? Is there any major concerted undertaking amongst the various groups? Is there comparative data exploring the advantages and disadvantages of pumps powered by different sources of energy?