Severe cold in northern hemisphere has revived arguments about climate change. In contrast to the global warming theory, some experts say the warming process has stopped, and the climate is actually becoming cooler. Some experts believe globe oceans experiencing a miniature Ice Age. They even think the cold weather could last for two or three decades.

Scientists draw their conclusions from water temperature data in the Atlantic and Pacific oceans. They say the data casts doubt on global warming theories, taking issue with beliefs such as there may be no ice within the Arctic Circle by the summer of 2013.

Data from US ice and snow studies show that since 2007, the amount of ice in the Arctic during summer increases by over 1 million square kilometers, about 26 percent of the original amount.

Some computer climate simulations show that global warming since 1900 was caused by human activities, with temperatures rising as more carbon dioxide is discharged. However, climate cooling theories throw over the previous speculation. Some scientists believe that the cause of the warming is that the oceans are in their warm period, and not from a warmer atmosphere.

Famous climate researcher Mojib Latif from Germany says, the oceans have their own warming and cooling cycles every 20 to 30 years. That's why the cold around the world this winter is within estimates. Latif also says, temperatures in summer may also be lower. He concludes the earth is in a miniature Ice Age, and the cool trend could last 2 to 3 decades.

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