Scientists are not the first debate about what mechanisms can dramatically change the Earth's climate. Many people talk about global warming due to emissions of CO2, others — the flares. Another theory concerned the displacement axis of rotation of the planet. And now, this version has been confirmed. It was found that even a small shift is enough to cause ice age in this century, writes the Daily Mail.
Harvard professor Peter Huibers, using computer models to design scenarios, proved that it is the slope of the Earth's axis is crucial. "At least now we can say with more than 99% sure," — said the scientist. This discovery will predict global climate change.
There are two cycles of the earth, one last 10 thousand years, the other — about 40 thousand years. During one of these ice caps begin to melt, and then, on the contrary, a period of global cooling. The first time that these cycles can dictate the frequency of glacial periods in the first half of the twentieth century. said Serbian geophysicist Milutin Milankovitch.
At the same time Hyuberts stressed that these cycles — only one factor among many. The climate is also affected by emissions of CO2 in the atmosphere, leading to the melting of glaciers.
To a similar conclusion was reached by geologist Vladimir Polevanov. "The study of ice cores in Antarctica showed that warming and cooling epochs alternated regularly. Over the past 450,000 years, there were six climatic cycles. We live in an era ending interglacial and regularly run in vperiod" great cooling "- warned the scientist. According to him, it can occur in the next ten years. then "turn off" the Gulf Stream to Europe come Siberian winter.
Earlier geophysics suggested that the trigger for the start of a new ice age could be devastating earthquake in Japan. According to theoretical physicist Michio Kaku, after the cataclysm between tectonic plates beneath the Pacific Ocean is a crack width of about 400 km, which fell much of the earth's crust. "Because of this fact, reduced the time of day, and shifted the Earth's axis," — said the scientist — and as a result has increased the speed of the planet.
At the same time, Russian scientists have put forward the hypothesis that the earthquake in Japan may be due to a large solar flare. In their view, solar activity can influence the processes occurring in the Earth's crust.
And according to Robert Ehrlich of George Mason University, do ice ages occur not because of changes in the Earth's orbit or axis, and because of fluctuations in solar activity. Star, periodically sends to an awful magnetic storms, and is capable of long infamy. As suggested by Dr. Erlich, at the core of the sun is a kind of switch which cyclically — with an amplitude of about 100 thousand years — increases or decreases the level of radiation from the star, with the same intervals of freezing and warming up around the world. True, the research scientist is purely theoretical and have no experimental evidence.