Some of us stop thinking about water after it goes down the drain. But it goes somewhere. Under our cities, hidden rivers carry away the waste of daily life. Explore the depths of these unseen connections.

70 percent of our planet is covered with water, yet less than one percent of that is water we can drink. Our lives are tied to water, yet we are generally unconscious of our impact on the resource that gives us life.

We are conditioned to depend on light when it's dark, heat when it's cold and power when we plug in. Half of the freshwater in the U.S. is used in energy production, including coal, nuclear and natural gas. We stake the quality of our water for our way of life.

More than food and shelter, oil and gas, water is our most basic need. In the United States, water comes cheap. But its value is best discovered by those without it.

Water is wonderful. It falls free from the sky smelling like heaven and washes away filth — and it can taste so good.

We are water creatures. Our bodies develop in water, and we live every day — moment to moment — powered by water. Water is life, and our search for life on our planet and beyond continues to be a search for water. It defines and sustains us, from birth to death.

Most of us don't think about where our energy comes from. But in Appalachia and the Powder River Basin, mining coal is a way of life that can create both pride and passion.

Generating electricity can pollute the air we breathe, causing illness and even death. Neighbors of coal-fired power plants are fighting for cleaner air. Air pollutants can also travel, damaging health in other states.

We rely on coal in everyday life. When we switch on the lights, call our friends on the phone or turn on the faucet, we're using coal. You might be surprised at how much coal you use and where it comes from.

See the big picture in our complicated love affair with coal, grasp the details at ground level, then back up to expand your view.

Reporter Anna York traveled to Newtok, Alaska, to see firsthand how the rising sea threatened the stability of the village and its residents.

As energy consumption increases, the construction of power lines has fallen behind, leaving the energy grid in jeopardy.

The residents of Meigs County, Ohio are faced with the potential of a new coal plant, which could harm the community’s health but also create jobs.

The food we eat is processed using a large amount of fossil fuels and often travels a long way before arriving on our plates.

Mountaintop removal is an increasingly contentious issue in West Virginia. Protesters, miners and legislators clash in Appalachia.

The Powering Down energy challenge gives you the tools you need to chart your energy use and target savings in your home.

As efforts increase to lessen dependence on non-renewable energy sources, biofuels present a complex but perhaps viable alternative.

Even in the secular, scientific realm of climate change and energy policy, religious faith could play a role.

Farmers in Roscoe, Texas, missed out on the oil and gas boom, but they’re cashing in by placing wind turbines on their property.