Scientists look beyond climate change and El Nino for other factors that heat up Earth

Scientists look beyond climate change and El Nino for other factors that heat up Earth Scientists are wondering if global warming and El Nino have an accomplice in fueling this summer’s record-shattering heat. AP News

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Scientists agree that by far the biggest cause of the recent extreme warming is climate change from the burning of coal, oil and natural gas that has triggered a long upward trend in temperatures. A natural El Nino, a temporary warming of parts of the Pacific that changes weather worldwide, adds a smaller boost. But some researchers say another factor must be present.

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