Global warming is a long-term trend with ups and downs along the way

Pat Cunningham

Many climate-change denialists don’t seem to understand that global warming is not a relentless phenomenon without any dips in the overall trend.

The chart above shows occasional short-term declines in global temperatures. But the long-term pattern of warming is unmistakable.

Consider THIS situation, for example:

Heat absorbed by the deep oceans has brought a slowing of global warming in the last five years, U.K. scientists say, but the long-term trend is still upward.

Oceans absorb large amounts of the Earth’s heat, a phenomenon that goes on over long periods as heat from the ocean surface is gradually circulated to the ...

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