A little more than two decades ago (I don't remember the exact year), I vividly recall the local Denver news station I follow making a huge deal about the fact that the Denver area had had such a scorching summer, shattering the old record with 52 days with highs above 90° F. What could be going on that our high altitude city had had so many hot days?
Well, that number soon became routine, and the record crept up, reaching a high of 61 days over 90°. This year is a little different. Today's high is predicted to be 93°, and I believe that will be our 73rd day above 90°. That's more than a 40% increase over what was a record shattering statistic only a couple of decades ago.
Only a few months ago, a noted climate change denier totally changed his mind:
Climate-Change Skeptic Changes His Mind | Sci-Tech Today Here is an excerpt:
"Three years ago I identified problems in previous climate studies that, in my mind, threw doubt on the very existence of global warming," UC Relevant Products/Services Berkeley astrophysics Professor Richard A. Muller wrote in an opinion piece in The New York Times.
"Last year, following an intensive research effort involving a dozen scientists, I concluded that global warming was real and that the prior estimates of the rate of warming were correct. I'm now going a step further: Humans are almost entirely the cause," he wrote.
"The average temperature of the Earth's land has risen by 2 1/2 degrees Fahrenheit over the past 250 years, including an increase of 1 1/2 degrees over the most recent 50 years," wrote Muller, who founded the Berkeley Earth Surface Temperature project to debunk unsupported global-warming claims.
"Moreover, it appears likely that essentially all of this increase results from the human emission of greenhouse gases."
He said he and his colleagues "were not expecting this, but as scientists, it is our duty to let the evidence change our minds."
He called his new stance "a total turnaround."
His research was funded with $150,000 from the Charles G. Koch Charitable Foundation, which, along with its libertarian petrochemical billionaire founder, has historically backed groups that deny climate change.