Associated Press reporter Seth Borenstein has made another attempt to convince the public of global warming, but his latest analysis has climate scientists once again refuting his claims.
On Tuesday, Borenstein cited AP analysis that found hot temperature records in the U.S. were being broken twice as often as cold temperature records. He concluded that this is “a clear sign of human-caused climate change.”
The AP looked at 424 weather stations throughout the Lower 48 states that had consistent temperature records since 1920 and counted how many times daily hot temperature records were tied or broken and how many daily cold records were set. In a stable climate, the numbers should be roughly equal. Since 1999, the ratio has been two warm records set or broken for every cold one. In 16 of the last 20 years, there have been more daily high-temperature records than low.
Climate - Scientists
He went on to cite various climate scientists:
The AP shared the data analysis with several climate and data scientists, who all said the conclusion was correct, consistent with scientific peer-reviewed literature and showed a clear sign of human-caused climate change. They pointed out that trends over decades are more robust than over single years.
The analysis stopped with data through 2018. However, the first two months of 2019 are showing twice as many cold records than hot ones.
Scientists - Climate - Scientists - Fact - Sign
But the scientists he cited don’t speak for all climate scientists. Some, in fact, are dismissing his “clear sign” analysis.
Climatologist John Christy told me that Borenstein framed the data wrongly:
Occurrence - Record - Highs - Record - Lows
The occurrence of both record highs and record lows is declining. Record-low events are simply declining more rapidly than record highs. The drop in record lows is associated with development around the weather stations, which causes low temperatures to increase more than highs for a variety of reasons.
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