Columbia’s Earth Institute blends research in the physical and social sciences, education and practical solutions to help guide the world onto a path toward sustainability. Earth scientists, economists, business and policy experts, specialists in public health and law, researchers, teachers and students make up the Institute. At its largest research unit, the Lamont-Doherty Earth Observatory, some leading scientists study geology, oceans, freshwater systems, climate and atmosphere to better understand the Earth’s systems. By bringing those physical scientists together with experts in economics, law, public health and policy, the institute creates collaborations that help us learn how to best address issues of global sustainability. The Institute uses that knowledge to develop policy and engineer practical solutions to many challenges such as: climate change and environmental degradation, rapid urbanization, infectious diseases, natural hazards, the need for clean and accessible energy, water and sanitation, and the sustainable use of resources. The research news provides information on sustainability, health, natural disasters, urbanization, climate change, earth sciences and much more areas.