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Part of the "Green Careers" series. Presents an overview of job opportunities in water management, such as flood control, reservoir management, levee design and repair, designing and operating dams and sewer systems, river management and restoration, monitoring fish populations, protecting habitats and endangered species, maintaining natural resources, water conservation, irrigation, landscape design, and more. Jobs profiled include the following: civil engineer, water resource manager, water conservation specialist, and landscaper.
(Source: DCMP)
Rice covers most of Asia's best agricultural land and uses vast quantities of water, two vital resources that are increasingly in short supply. With the number of people in the world rising exponentially, rice farmers will have to cultivate and harvest rice with less labor, land, and time than they have in the past. Reviews how science and technology are solving this supply-and-demand problem.
Rigoberto Delgado, a health economist at the University of Texas, wants to help health-care professionals target their limited resources. His team is using geospatial mapping science and predictive analytics to forecast areas of highest risk for illness. The researchers want to figure out where to send the mobile health clinics to help prevent potential outbreaks. Part of the "Science Nation" series.
Geothermal energy is one of the oldest renewable resources used by humans. It has been used since the ancient Roman times as a heat source. Recently, it has been harnessed and used as a source of power. Explains a few different ways that geothermal power plants operate. Discusses how experts are working to fine-tune the process and make the power plants more affordable and useful across the country.
Researchers from NOAA's National Marine Mammal Lab track the migrating fur seals to understand where they feed in winter months and what marine resources they depend on for survival. It's early November and the team affixes a satellite transmitter to an adult female. They won't see her back on the Pribilof Islands until next July, and they hope the tag will stay on throughout winter and spring. Back at their offices in Seattle, the researchers begin tracking tagged animals via satellites.
In this episode, Joel Greene explores the Lighting Resources Facility in Texas, where they collect old light bulbs. They dump them all into an incredible machine that breaks them apart, safely collects the mercury, and cleans the remaining glass. Lastly, Joel follows the crushed light bulb remnants and watches the process of mixing the recycled light bulbs in with recycled glass to create gorgeous counter tops and flooring. Part of the Curiosity Quest Series.
Energy has been essential for the development of human activities from the Industrial Revolution to present day. Over the course of history, human consumption of energy has increased significantly. Currently, society depends largely on nonrenewable energies that come from fossil fuels. However, the increase in greenhouse gas emissions has highlighted the need to change from fossil fuels to renewable energy sources that reduce environmental contamination. Many industries are committing to the development of alternative energy sources that don’t contribute to global warming. Chapter 9 of Air: Climate Change Series.
With today's high fuel costs, it is time to start looking beyond petroleum and into renewable resources to power vehicles. Ethanol is a clean-burning fuel derived from plants, primarily corn. It is combined with gasoline to produce a cleaner fuel that doesn't emit as many greenhouse gases as pure gasoline. Pure ethanol has not yet been approved to fuel vehicles, but it is the fuel of choice for racecars. By mixing gasoline with ethanol, fuel supply can be extended. Explores the production of ethanol and highlights the importance it holds in the "green power" movement.
Tells the inconvenient truth about the environment. Outlines how to conduct an eco-investigation of homes, schools, and communities to determine which daily routines waste resources or are harmful to the environment. Examines use of grocery bags, the packaging of products, food and drink, water consumption, the safety of cleaning products, and energy usage in homes. Takes a closer look at paper and other material usage in schools as well transportation in communities. Shows how individuals contribute to the problem and how to be part of the solution of eco-friendliness.
Explores the open savannahs of Africa, particularly the mammals that inhabit them and the trees that border the grasslands. Shows how the different animals interact with each other and the non-living elements of their habitat to maintain a healthy balance. Also investigates the threat from an increasing human population for homes, food, other resources, and the resultant threat to the survival of many animal groups. Looks at international breeding programs around the world, which were established to protect these animals and enable them to reproduce in captivity, so their gene pool is preserved.
Host award-winning geoscientist, Richard Alley provides an eye-opening look at some of the world's most important case studies in smart energy. Alley travels to Spain and Morocco where large-scale solar farms and individual photovoltaic panels atop tents in the Sahara are beginning to bring the vast potential of the sun down to Earth. In Brazil, abundant natural resources are transformed into efficient, sustainable biofuel, making Brazil the only nation whose cars could keep running if all gasoline were to vanish. In Denmark, and West Texas, citizens have taken sustainability into their own hands by becoming stakeholders in wind turbines. And in China, he explores multiple sustainable energy technologies, including exclusive footage from GreenGen, the world's most advanced low-carbon emissions power generation plant. Part One Earth: The Operators’ Manual.
From cleaning supplies to pharmaceuticals, surfactants are the compounds that make soap bubbly, paint spread smoothly, and medication dissolve more easily. Most surfactants are currently made from non-renewable petroleum sources and many of these surfactants don’t break down easily after they are discarded. Some can persist in the environment for decades. Their widespread use and environmental persistence has raised concerns about toxicity. At the University of Arizona, Jeanne Pemberton and her cross-disciplinary team work to create new “green” surfactants based on sugars that are generally known as glycolipids. With support from the National Science Foundation, Pemberton and her team are exploring the recent discovery of a versatile synthesis that allows production of many different types of glycolipids in large quantities. Some of these glycolipids are modeled after naturally occurring biosurfactants and some can be produced relatively inexpensively using renewable natural resources. Part of the National Science Foundation Series “Science Nation.”
Showing collections 1 to 4 of 4
A collection of Chemistry related resources
A collection containing 67 resources, curated by Benetech
Resources related to vision
A collection containing 12 resources, curated by Charles LaPierre
Collection of anatomy resources
A collection containing 21 resources, curated by Benetech
Resources to teach younger students about animals
A collection containing 58 resources, curated by DIAGRAM Center
