Ivan Espinal Urena

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A Planet With Brains? The Peril And Potential Of Self-Aware Geological Change

Recent years have seen a vigorous debate over whether or not we have entered a new epoch of geologic time, the "Anthropocene," characterized by humanity as a new geologic force.<p>Much of this has centered over when this age began. Three candidates for this include: an "Early Anthropocene" many …

Earth Science

Six places where renewable energy is cheaper than fossil fuels

<i>By Cat DiStasio</i><p>In the race to reduce the world's reliance on fossil fuels, cost is a huge factor. It's taken years, but advances in technology and increases in both efficiency and output have helped bring down the expense of renewable energy, which has in turn increased demand. Globally, fossil …

Six unexpected sources of renewable energy

<i>By Cat DiStasio</i><p>When it comes to discussions about renewable energy, solar and wind power often take center stage. To a lesser degree, other forms like geothermal energy and hydropower also get some attention. But many people may not be aware that there are many other sources of renewable energy …

The Physics Defying EmDrive Just Passed Peer Review. Here's What You Need to Know

A Contentious Technology<p>Documents were leaked earlier this month about NASA’s study of a proposed EmDrive. It generated the usual host of reactions, …

The Future Of Neighborhoods: Five Projects That Show How We’ll Live

Residential life could soon be changing.<p>1. We’ll Generate Our Own Resources<p><b>An ambitious experiment in the Netherlands could be a model for life off the grid.</b><p>When a new housing development called ReGen Village opens as early as next year on the outskirts of Amsterdam, residents won’t have to rely on …

The ethics of colonizing Mars

Elon Musk, inventor and CEO of SpaceX, recently shared his vision to build the first human city on Mars within a decade. For the cost of a home, The Interplanetary Transport System would take you and 100 tons of cargo to the Red Planet.<p>In 2013, the Kepler spacecraft found nearly 40 billion …

Sustainability