Climate News Network: Chinas fast-rising population and its burgeoning economy make steep demands on natural resources, so steep that Beijing is searching constantly for supplies from overseas. And it wants to obtain them, naturally, as cheaply as it can. Now in prospect is Chinas trans-Amazon railway a 3,300 mile-long (5,000 km) artery to link the soya-growing areas and iron ore mines of Brazil to the southern Peruvian port of Ilo, providing a cheaper, shorter route than the Panama Canal. Feasibility studies on...