Total emissions of carbon dioxide produced by humans around the world is much bigger than natural emissions are removed from nature such as volcanic activity. Research results showed that human emissions of carbon dioxide 135 times more than all volcanic emissions in the same time frame. The amount of carbon dioxide released in a three-day human equivalent of the amount of carbon dioxide produced by volcanoes.
"Many say volcanoes release more CO2 than humans. But, they never released the exact number," said Terrence Gerlach, a volcano that has been retired ever worked for the Cascade Volcano Observatory, part of the U.S. Geological Survey in Vancouver.
The researchers then estimated carbon dioxide emissions by volcanoes by measuring the amount of carbon dioxide released during the eruption. The methods used there are several. Among them, scanning the resulting cloud of volcanic eruptions, as well as measuring the concentrations of isotopes around the volcano. Gerlach said that volcanic eruptions are exceptional events. According to him, eruptions look great on television, but this was just a moment.
"Compare with another source - factory smoke, vehicles, and others - who spend 24 hours per day of CO2," he said. Emissions alone lead to forest clearing about 3.5 billion tons per year. Cars and big trucks produce 2 billion tons. Production of cement produced 1.4 billion tons of carbon dioxide. Similarly, Gerlach gives an overview. "That alone would exceed the emissions released volcano," he said.
Researchers estimate the entire volcano issued 0.13 to 0.44 billion tons per year. While humans emit 35 billion tons in 2010.
Source - National Geo -
0 comments:
Post a Comment