In 2011, Richard Muller - perhaps the leading scientist who expressed doubts about global warming - told the House Science and Technology Committee that, contrary to what he expected, his comprehensive study shows unequivocally that the Earth is warming at an alarming rate. These prescribed fires remove undergrowth, brush, and ground litter from a forest, depriving a wildfire of fuel.Although often harmful and destructive to humans, naturally occurring wildfires play an integral role in nature. They also act as a disinfectant, removing disease-ridden plants and harmful insects from a forest ecosystem.
Learn the basics about the tools and tricks scientists use to study Earth's climate history. This resource provides an excellent primer on what we know about abrupt change in the past and how we know it. Access to a spectrum of visualizations and supporting material that can be used effectively to teach students about paleoclimate through geologic time.
Use this investigation to explore graphs of ice core data and learn more about what the gases and materials in ice cores tell us about past and future climate changes.
Use a simple online, model to learn about the relationship between average global temperature and carbon dioxide emissions while predicting temperature change over the 21st century.


Graph sea ice extent in the polar regions to learn about seasonal variation and about long-term trends that may represent response to climate change.
We're blessed with such amazing abundance - foods and consumer goods from around the globe. And by burning through thick canopies and brushy undergrowth, wildfires allow sunlight to reach the forest floor, enabling a new generation of seedlings to grow. One such period of abrupt change occurred about 8200 YBP (years before present), less than 3500 years into the Earth's current interglacial phase of the glacial-interglacial cycle. Presents information that is deemed important for individuals and communities to know and understand about Earth climate, impacts of climate change, and approaches to adaptation or mitigation.
The earliest fire-making method consisted of twirling a pointed stick in a wooden block, creating an ember to light tinder. These emissions come mainly from the burning of fossil fuels (coal, oil, and gas), with important contributions from the clearing of forests, agricultural practices, and other activities. Fuel is any flammable material surrounding a fire, including trees, grasses, brush, even homes.


In California wildfires are often made worse by the hot, dry Santa Ana winds, which can carry a spark for miles.Firefighters fight wildfires by depriving them of one or more of the fire triangle fundamentals.
Traditional methods include water dousing and spraying fire retardants to extinguish existing fires.
Clearing vegetation to create firebreaks starves a fire of fuel and can help slow or contain it.
Firefighters also fight wildfires by deliberately starting fires in a process called controlled burning.




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