World on brink of environmental tipping points, UN says
The world is heading towards a series of environmental "tipping points" that could cause irreversible damage to water supplies and other life-sustaining systems, the research arm of the United Nations warned on Wednesday. Climate change and the overuse of resources have put the world on the brink of six interconnected tipping points that "could trigger abrupt changes in our life-sustaining systems and shake the foundation of societies," the UN University's Institute for Environment and Human Security (UNU-EHS) said. "Once these thresholds are passed, the system ...