That’s one theory:

Britain’s big freeze is the start of a worldwide trend towards colder weather that seriously challenges global warming theories, eminent scientists claimed yesterday.

The world has entered a ‘cold mode’ which is likely to bring a global dip in temperatures which will last for 20 to 30 years, they say.

Summers and winters will all be cooler than in recent years, and the changes will mean that global warming will be ‘paused’ or even reversed, it was claimed.

Big chill: Scientists have claimed that the world has entered a ‘cold mode’ which could last three decades, a theory that challenges climate change

The predictions are based on an analysis of natural cycles in water temperatures in the Pacific and Atlantic oceans.

They are the work of respected climate scientists and not those routinely dismissed by environmentalists as ‘global warming deniers’.

Some experts believe these cycles – and not human pollution – can explain all the major changes in world temperatures in the 20th century.

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