The Critical Issues Forum “America’s Increasing Reliance on Natural Gas: Benefits and Risks of a Methane Economy” will be held in Fort Worth, Texas from November 19-20, 2014.

Of all the water on Earth, less than 3 percent is available for human use, and as climates change and populations boom, the strategies used to extract it will become increasingly complex. With increasing demand, policymakers, scientists and leaders must recognize the energy-water nexus. The energy-water nexus describes an interdependent relationship that exists between availability of water resources and the energy required to obtain, distribute and utilize them. The way we manage the delicate relationship between energy and water will have major implications for the future of both critical resources, as EARTH explores in the July issue.

To what extent is the United States energy independent? In recent years, Americans have heard a lot about the need to be unconstrained from foreign energy sources, but what do the numbers really tell us about our current state of independence?

The idea that the Arctic is changing is not breaking news. Sea-ice extent has been declining by 12 percent per decade since 1979, and the ice is thinning too. Because of this, new shipping routes are becoming accessible during the summer months, and the Arctic is beginning to attract parties interested in resource exploration, scientific research and tourism. Therefore, a more accessible Arctic not only means environmental changes, but also changes in our economy and our national security.

What would you do without your cell phone and computer? How about your car? Could you function in modern society without these contemporary devices? All of these technological marvels require no fewer than 60 different elements to function, and these elements come from a finite supply of mineral commodities. These critical minerals are defined by their dollar value, the availability of substitutes, and their ever increasing demand. In a new EarthNote, the American Geosciences Institute (AGI) outlines what makes a "mineral critical" and how the sudden loss of these resources could impact both the U.S. and global economy.

Is the United States entering its Lost Decade"? A crunch on natural resources coupled with a crippling economic crisis and an aging workforce threaten to hurl us into a decade or more of grudgingly slow development akin to that of the Japanese after their own real estate bust a few decades ago. Will the United States learn from past mistakes in order to reconcile economic growth with environmental safety? In the December issue of EARTH Magazine, learn how the facts and the fallacies measure up to the increasing challenges facing the United States in 2012 and beyond. "

China sent the high-tech industry and markets reeling last fall when it blocked exports of raw rare earth minerals to Japan, Europe and the U.S. The sudden severing of rare earths supply was a frightening prospect as the minerals are key ingredients in a broad range of high-tech products, from smartphones to wind turbines and hybrid cars. Although the bans have since been lifted, governments around the world saw the ban as a kind of wake-up call and started looking at ways to develop their own mineral resources - for rare earths as well as basic industry metals like copper and zinc.

On Feb. 22, a magnitude-6.1 earthquake struck Christchurch, New Zealand, killing nearly 200 people and causing $12 billion in damage. About three weeks later, a massive magnitude-9.0 earthquake struck northern Honshu, Japan. The quake and tsunami killed about 30,000 people and caused an estimated $310 billion in damage. Both events are stark reminders of human vulnerability to natural disasters and provide a harsh reality check: Even technologically advanced countries with modern building codes are not immune from earthquake disasters.