Doomsday and 2012. You’ve probably heard rumblings, if not more, about a supposed connection. Many people point to an ancient Mayan calendar – made 1200 years ago – as the source of the rumors. EarthSky spoke with Kathryn Reese-Taylor, professor of Mayan archaeology at the Canada’s University of Calgary about what archaeology says about 2012 and doomsday prophecies.
To meet demand for oil, industry has pushed the limits of technology to reach new oil reserves. In the deep water of the Gulf of Mexico, some estimates say there is enough oil to power the United States for 10 years or more. Geoscientist Lesli Wood is a Senior Research Scientist with the Bureau of Economic Geology at the University of Texas at Austin. Dr. Wood talked with EarthSky about the current challenges and future innovations involved in exploring for oil in the deep waters of the Gulf of Mexico.
The ancient Maya of Central America and Southern Mexico are famous for perfecting a calendar to which many attribute predictions that the world will end on December 21, 2012. EarthSky spoke with Professor David Stuart, an archaeologist and expert on the ancient Maya at the University of Texas at Austin. He told us that neither the Maya, nor their calendar, ever predicted the end of the world.
Earth’s human population has reached 7 billion and is still climbing. Scientists say the depletion of groundwater around the world is a serious issue. They say we need to know where our water resources are, and what options society can leverage to use these resources most effectively. Bridget Scanlon is a Senior Research Scientist at the Bureau of Economic Geology at the University of Texas at Austin. Her research team works to assess water resources and offer sustainable solutions. She spoke with EarthSky’s Jorge Salazar.
You say there’s a hidden cost of water in everything we use and consume. Tell us about that.
That’s right. When you ask them how much water they use, a lot of people think of the household usage for laundry and showering and things like that. But our food choices involve a lot more water.
Deep in cracks of hot undersea volcanoes, microbes inhale hydrogen and carbon dioxide and exhale methane. They might help scientists understand life beyond Earth.
Natural gas is a major source of the energy we all use everyday. It’s found deep underground, often in the company of oil. In recent decades, conventional natural gas deposits have been the most practical and easiest to produce. Now costs have fallen to enable a boom in unconventional natural gas not possible a decade ago via a technique known as hydraulic fracturing, or fracking. Industry estimates suggest that $20 trillion will be spent on obtaining unconventional gas and oil between the years 2012 and 2035. Geologist Eric Potter of the Bureau of Economic Geology at the University of Texas at Austin explained the basics of unconventional natural gas – the what, how and why of fracking – with EarthSky’s Jorge Salazar.
Stanford University biologist Paul Ehrlich is famous for his 1968 book The Population Bomb. Like many before him, Ehrlich said that equal opportunities for women might be key to maintaining Earth’s population at a reasonable level.
Satellite images show big changes happening to Chesapeake Bay, the largest estuary in the U.S., where freshwater meets the sea. EarthSky spoke about it with Peter Claggett, a research geographer with the U.S. Geological Survey’s Eastern Geographic Science Center. Claggett’s team tracks changes in Chesapeake Bay using data from the Landsat program of Earth-observing satellites.
Our mix of energy choices today is in a state of transition, from a system based on cheap oil and coal to a broader energy spectrum. Science and technology have a big role to play in our energy future by addressing inefficiencies in the ways we find, process and use energy, and by finding innovative ways of scaling up successful energy systems.
Scott Tinker is the Director of the Bureau of Economic Geology at the Jackson School of Geosciences, University of Texas, Austin. He worked in the oil and gas industry for 17 years in research, exploration, and development, prior to coming to The University of Texas in 2000. He told EarthSky that future energy choices will likely be based on both economic realities and environmental concerns.