Iceland volcano has caused humanity?

Before the eruption of Eyjafjallajokull volcano in Iceland, a series of flights in Europe stalled, some scientists feared that the mountain could be a disaster for many countries.

This concern is not unfounded: more than 200 years ago, the volcano Latki, also in Iceland, once caused crop failure and widespread talk in Europe. Below are the opinions of Vietnamese scientists about the cause and impact of volcanoes in Iceland.

Mr. Ngo Thuong San, General Geological Division: Maybe due to changing the earth axis

Eyjafjallajokull volcano in Iceland has been inactive for hundreds of years. The return of this mountain to such a large scale may stem from the change of the earth's axis of rotation. It is this unusual change that disturbs the structure of the volcanic geological composition, making it work again.

Prof. Pham Ngoc Dang, Vietnam Association for Nature and Environment Protection: Air contaminated with heavy metals

This volcanic ash in Iceland this time is capable of flying very far, affecting many countries. In the dust component, there is also H ₂ S and NH ₄ gas . which are easily flammable, which makes the temperature in the dust cloud maintain longer. People in the affected area of ​​the ash will face unusually high temperatures, homes burned, destroyed ecosystems, heated land into inert, uncultivated land in rows. a hundred years. In addition, in the long run, heavy metals suspended in the air can cause respiratory illness for a long time.

Not only stagnating flight, Eyjafjallajokull volcano can cause unusually long winter.Photos: Wikipedia.com

MSc Phan Kim Hoang, Ho Chi Minh City University of Natural Sciences: Does not affect Vietnam

The cloud of dust due to Eyjafjallajokull volcano only affects mainly in the European region, unable to come to Vietnam. Recently, many scientists have suggested that volcanoes can change the climate, affect the extinction of some species . But in my opinion, volcanic activity only occurs in certain places. and almost cyclical and if influential, up to only 10% of the earth's area, cannot be bigger.

Mr. Nguyen Xuan Khiem, Institute of Geosciences and Minerals: The law of atmosphere is changed

Volcanic eruption has brought into the atmosphere a huge amount of gas and dust, existing there for months, even years and spreading over a large area. This may alter the general circulation of air in the atmosphere. These suspended volcanic materials are capable of absorbing some of the sun's radiation on the one hand, and on the other hand enabling it to reflect on the air, causing the air temperature to be reduced, causing the winter to pull. unusually long.