... 296,382, 4 01 Tropics, 27, 28, 52, 227, 397, 407, 500UUncontrollables, 13 3, 14 0, 14 1, 14 6, 14 9United States, 1 5, 8–9, 12 14 , 79 10 4, 11 0 11 2, 11 6, 11 8, 12 0, 12 2, 12 4, 12 8 12 9, 16 1 16 2, 16 3, 16 8, ... 73, 11 5, 12 1 12 2, 13 0, 488 Energy energy costs, 10 , 31, 11 7, 11 8, 12 0, 12 1, 14 3, 297, 299, 304, 306–307, 311 , 333,336, 358, 359, 3 61, 367, 376, 3 81 energy crop, 76, 15 5, 19 7, 207–208,395– 418 , ... 4 51 454,455, 465–488, 493–494, 496Bioheat, 395–397, 402, 403, 404, 407– 411 , 418 Biomass, 2, 3, 4–5, 9, 11 , 19 –54, 73, 91, 11 2, 12 8, 13 4 13 5, 13 6, 13 7, 14 7, 15 3 15 5, 16 0 16 7, 18 4, 19 1, 19 7, 19 9,...