According to climate experts: “What we’re looking for is a lot of corroborating evidence that it’s all pointing in the same direction,” said Chris Smith, a climate scientist at England’s University of Leeds.

Unrelenting heat waves roasted Phoenix and Argentina. Wildfires raged in Canada. In Libya, floods killed thousands of people, noted an article in the newspaper.

Winter ice cover on the seas around Antarctica reached record lows, while global temperatures this year not only broke previous records.

According to June-November analysis, temperatures reached new highs month after month and December temperatures remained largely above normal.

Global temperatures have long risen and fallen around a steady warm trend due to cyclical factors such as El Niño.

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