Stellarium How Were Fossil Fuels Formed? Return to Challenges of Non-Renewable Energy This slideshow was produced by George Vibranz and Anne Glausser. Shale gas is a fossil fuel that formed millions of years ago. Different kinds of fossil fuels — coals, oils, and natural gases — formed as dead plants and animals decayed. Scientists refer to such remains as “organic matter.” This narrated slide show is part of our Challenges of Non-Renewable Energy series. Pre-viewing Questions What do you already know about fossil fuels? Focus Questions for Viewing How did shale form over time? Post-viewing Questions Scientists say that nearly all of the energy on Earth comes from the sun. Extension Activity Conduct research to find shale gas deposits that have been discovered near your state. Links to Learn More Make a Geologic Timeline , Ohio Department of Natural Resources: Geologic time is very difficult to think about in terms of a human lifetime. NGSS Correlations Category: Education, Energy, Environment, Geology
Watch Free Documentaries Online | Documentary-Log.com Interactive Map: Four Ways to Look at Carbon Footprints About this graphic Graphics by Stephen Rountree and Adam Marr Source: World Resources Institute CAIT 2.0 climate data explorer Emissions data and national boundaries are from 2010. For current emissions, per capita emissions, and intensity, the data are measured in tons of "carbon dioxide equivalent." That is, they include carbon dioxide and five other greenhouse gases (methane, nitrous oxides, hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride) as measured by their global warming potential. Cumulative emissions are measured in tons of carbon dioxide only. The emissions of Brazil and Indonesia may be understated because the numbers do not include calculations on land use change and forestry. There are high uncertainties in current measures of deforestation's contribution to greenhouse gas emissions, as international authorities work to develop a consistent methodology.
Knotology, the art of creating spheres from strips of paper Projects The second project: A sphere of colored strips. Take 6 strips with a length of 12 times the with. Because of the fact that these strips also need diagonal folds, you can make witches ladders at a different way. Take 5 strips, leave the 6th. First we are going to make the "northpole". You will get 5 pyramids, with triangular bases, who will meet in one point. The 6th strip we call the equator. Getting the Picture | Home
CrimethInc. Ex-Workers’ Collective : Home Footprint Basics - Overview Human activities consume resources and produce waste, and as our populations grow and global consumption increases, it is essential that we measure nature’s capacity to meet these demands. The Ecological Footprint has emerged as one of the world’s leading measures of human demand on nature. Simply put, Ecological Footprint Accounting addresses whether the planet is large enough to keep up with the demands of humanity. The Footprint represents two sides of a balance sheet. Biocapacity can then be compared with humanity’s demand on nature: our Ecological Footprint. Our current global situation: Since the 1970s, humanity has been in ecological overshoot with annual demand on resources exceeding what Earth can regenerate each year. It now takes the Earth one year and six months to regenerate what we use in a year. We maintain this overshoot by liquidating the Earth’s resources.
Macro Photography in Singapore Earth Vision Institute | Earth Vision Institute, Founded by James Balog