Chemistry of Burning

Chemistry of Burning Activity Source: The University of Texas at Austin Bureau of Economic Geology. Provided by Association of American State Geologists. Adapted with permission. Why is CO2 increasing in the atmosphere? Who is doing it? Many people think that CO2 is “pollution,” so that clean burning should be a way to eliminate greenhouse gas emissions. In this demonstration, we review basic chemistry (see illustration) to realize that producing CO2 is an inevitable product of burning any fossil fuel. [Read More]

Exploring Climate Change with GIS

Exploring Climate Change with GIS Activity Source: ESRI. Adapted with permission. Earth’s climate is a product of and is affected by many things—and it’s changing. Long-term and short-term processes, such as plate tectonics and volcanism, contribute to climate. Likewise, human influences, such as rising CO2 levels from fossil fuel burning and deforestation, play active roles. The expression of climate change is seen in a variety of forms: Erratic weather patterns and rising sea levels are among the most discussed. [Read More]

Greenhouse in a Beaker

Greenhouse in a Beaker Activity Source: Adapted with permission by The NEED Project. Carbon is naturally found in the atmosphere. Carbon dioxide, or CO2, itself is not considered a pollutant. The CO2 being released from burning fossil fuels was part of the atmosphere hundreds of millions of years ago before being captured by plants and sea organisms. Carbon atoms naturally cycle through the biosphere, the atmosphere, the hydrosphere, and the lithosphere in process known as the carbon cycle. [Read More]

Measuring Glacial Retreat

Measuring Glacial Retreat Activity Source: Adapted with permission by U.S. Geological Survey. The USGS has been studying glaciers in Glacier National Park since 1850. It is estimated that there were 150 glaciers in the park back then, and when the national park was established in 1910. Today only 25 glaciers remain. Scientists go back every year to repeat photographs, as well as to examine the ice and the ecology of the landscape to see how glacial retreat is affecting plant and animal species that live there. [Read More]

Sea and Ice Salinity

Sea and Ice Salinity Activity Source: NASA Aquarius Mission and the National Snow and Ice Data Center, 2007. Activity adapted with permission from UCLA Marine Science Center’s OceanGLOBE. Background What is sea ice? It is simply frozen ocean water. Why is sea ice important? While it occurs mainly in polar regions, sea ice influences our global climate. Changing amounts of sea ice can affect ocean circulations, weather patterns, and temperatures around the world. [Read More]

What Covers Our Land?

What Covers Our Land? Activity Source: NASA, Adapted with permission. Looking at Earth from space is inspiring. All of the colors you see in a satellite image tell you a lot about the world around us. What is on the land around you? Pavement? A grassy lawn? A forest? What covers our land matters because we depend on and pasture to produce food, forests for wood products, plants for clean air, and water to support wildlife. [Read More]

Your Own Greenhouse

Your Own Greenhouse Activity Source: ARM and the U.S. Department of Energy. Adapted with permission. As far back as ancient Greek and Roman times, people built structures that created an indoor environment suited to growing plants throughout the year. This enabled the gardener to establish a measure of control over growing conditions and extend the growth period into the colder seasons of the year. In this manner, the gardener was better able to provide fresh fruits and vegetables when needed. [Read More]