What effect does volcano have on climate?

199 1 In June, 2006, the Penatubo volcano in the Philippines, which had been sleeping for more than 600 years, suddenly erupted, and a huge mushroom cloud rose to an altitude of 32 kilometers. Hot volcanic dust fell from the sky, and the sun suddenly became dim. One survivor described the scene like this: "It looks like the end of the world is coming."

The wind carried the smoke to the west of the earth. A few weeks later, thousands of Americans were surprised to find that the sunset showed strange colors through the clouds. Volcanic dust not only brought this to the world, but also greatly hindered the sunlight from reaching the earth. Scientists from the National Oceanic and Atmospheric Administration estimate that the smog in Penatubo is thick enough to reduce the average temperature of the earth by 0.56℃ in the next few years. Larry Stowe, an authoritative scientist, explained: "The particles ejected by the volcano are far above the atmosphere, and it will not be eliminated by rainfall alone." Although the temperature drops by 0.56℃ with little change, it will have an impact on the global winds and tides.

18 15 After the eruption of Tamboura volcano not far from Java Island, the climate was greatly affected. In New England, it snows in June. In the south of France, people woke up on the morning of July 4th (French National Day) and found that the ground outside was covered with frost. The fiery airflow of the volcano evolved into the cold climate in other parts of the earth, making 18 16 a "year without summer".

Volcanoes can also cause other strange weather. During the period of 1982, Elca Kun volcano in Mexico and Nyamra volcano in Africa erupted successively. Soon, the trade winds near the equator weakened obviously, leading to the continuous eastward attack of warm water in the Pacific Ocean, followed by severe droughts in South Africa, India, Indonesia, the Philippines and Australia. Tornadoes roared in the Pacific Ocean, and heavy rains fell in Peru, Ecuador and the west coast of the United States, causing floods.

According to Paul Handra of Illinois State University, the above disasters are due to the weakening of sunlight in the tropical Pacific caused by volcanic eruption, thus weakening the trade winds and losing balance. He pointed out that since 1877, similar phenomena have occurred 1 1 times.

Scientists have found that large-scale volcanic eruptions will affect the earth's climate in a certain range. Due to the great power of volcanoes, heat from the depths of the earth will make the earth extremely active. First, if there is no volcano and other power to form mountains, then the whole world may be submerged by seawater. Secondly, rain washes the main components of life, such as carbon and acid, to the major coasts of the world, and carbon is converted into calcium carbonate before sinking into the seabed. Without volcanoes and marine plankton, a part of the world's carbon will sleep on the seabed forever, and plants, animals and humans that depend on carbon on the earth will disappear from the earth.