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Fire regimes of United States plants. Savannas have regimes of a few years: blue, pink, and light green areas. When first encountered by Europeans, many ecosystems were the result of repeated fires every one to three years, resulting in the replacement of forests with grassland or savanna, or opening up the forest by removing undergrowth. [23]
The suppression of fire can lead to unforeseen changes in ecosystems that often adversely affect the plants, animals and humans that depend upon that habitat. Wildfires that deviate from a historical fire regime because of fire suppression are called "uncharacteristic fires".
The control of fire by early humans was a critical technology enabling the evolution of humans. Fire provided a source of warmth and lighting, protection from predators (especially at night), a way to create more advanced hunting tools, and a method for cooking food. These cultural advances allowed human geographic dispersal, cultural ...
Figuring out what caused a fire, experts say, is a painstaking, time-intensive process. ... 95% of fires in California are caused by humans, whether through an intentional act of arson, a downed ...
The causes that sparked the fires are under investigation, and the scientists noted that because there are no natural ignition sources this time of year, the fires were almost certainly started by ...
A sheriff’s deputy in Clackamas County, Oregon was caught on video claiming that the fires were started by "Antifa or other crazy left-wing people." Fox News host Laura Ingraham made the claim ...
Pyrocene is a proposed term for a new geologic epoch or age characterized by the influence of human-caused fire activity on Earth. The concept focuses on the many ways humans have applied and removed fire from the Earth, including the burning of fossil fuels and the technologies that have enabled people to leverage their influence and become the dominant species on the planet.
Nearly 85% of U.S. wildfires are caused by humans, according to the U.S. Forest Service. Natural causes include lightning and volcanic activity. The Hawaiian Islands have six active volcanoes ...