Growing a National Park
Rain forest gets all the publicity, but even more threatened is tropical dry forest. This week an ambitious plan is being announced to multiply one of the few dry forest parks sevenfold.
Dan Janzen , Professor of Tropical Ecology at the University of Penny sylvania, has spent more than 20 years getting to know Santa Rosa National Park inCosta Rica. He tells
Jeremy Cherfas about his dramatic plans.
Producer MICHAEL BRIGHT BBC Bristol
(Re-broadcast next Saturday)