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Brandie Hayes

Institute for Global Environmental Strategies >> Carbon City - 19 views

esseacourses.strategies.org/module.php

student activity reduction of greenhouse gases

shared by Brandie Hayes on 24 Apr 13 - No Cached
  • Brandie Hayes on 24 Apr 13
     
    Great activity to help students use NASA data in order to develop a community-based strategy to reduce greenhouse gas emission. Includes additional resources (articles, websites, NASA instruments) to help students learn about CO2 emissions, what is being done around the world, to decrease CO2 emissions, and what they can do. 
Jac Londe

Startup turns carbon dioxide into fuels - 1 views

phys.org/...rtup-carbon-dioxide-fuels.html

co2 dioxyde carbon carbon dioxide fuels science

shared by Jac Londe on 18 Jun 12 - No Cached
  • Today, carbon dioxide (CO2) is a hot topic. Scientists around the globe are searching for ways to store, dispose of, or prevent the formation of the greenhouse gas, which is a major driver of global climate change. Liquid Light hopes to take this concept one step further and harness waste CO2 as a source of carbon to make industrial chemicals and fuels.
  • Take CO2 and mix it in a water-filled chamber with an electrode and a catalyst. The ensuing chemical reaction converts CO2 into a new molecule, methanol, which can be used as a fuel, an industrial solvent or a starting material for the manufacture of other chemicals.
  • Bocarsly likes to call the process "reverse combustion" because it is like running a burning reaction backwards. Instead of burning fuel and oxygen to produce CO2, the CO2 converts back into fuel and oxygen.
  • ...2 more annotations...
  • Cole set up a flask containing a solution of CO2 and a pyridinium catalyst dissolved in water. In place of sunlight, which emits a broad spectrum of wavelengths of light, she shined on the flask a blue light-emitting diode (LED) because it gives off certain wavelengths that are highly efficient at driving the reaction. In the flask she placed an electrode that is activated by particles of light, or photons. "We used a semiconductor electrode that would allow us to substitute light for electricity," said Cole.
  • The Princeton scientists did some additional studies, and made a surprising discovery: They could turn CO2, which contains only one carbon, into a compound with a carbon-carbon bond, which vastly increases the possibilities for creating commercial applications.
Laura Miller

Explore the planet Mars with realistic Mars habitats, rockets, ground cars and robots - 61 views

www.exploremarsnow.org

mars space astronomy habitats exploration

shared by Laura Miller on 09 Jan 10 - Cached
  • Laura Miller on 09 Jan 10
     
    A realistic walk-though of a 3-D model of a Mars base for the first humans to land on Mars. Over 100 images representing a Mars habitat, a greenhouse, a Mars car and robot rovers.
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