Bears repeating, a million times: the weather is going to become more extreme as we finish the job of destroying planet Earth. Paid shills like George Will may dispute the facts, may be given a national platform to spew their garbage, but science will triumph.
“The climate is changing,” said Jay Lawrimore, chief of climate analysis at the National Climatic Data Center in Asheville, N.C. “Extreme events are occurring with greater frequency, and in many cases with greater intensity.”
He described excessive heat, in particular, as “consistent with our understanding of how the climate responds to increasing greenhouse gases.”
Theory suggests that a world warming up because of those gases will feature heavier rainstorms in summer, bigger snowstorms in winter, more intense droughts in at least some places and more record-breaking heat waves. Scientists and government reports say the statistical evidence shows that much of this is starting to happen.
(click to continue reading In Weather Chaos, a Case for Global Warming – NYTimes.com.)
Thermometer measurements show that the earth has warmed by about 1.4 degrees Fahrenheit since the Industrial Revolution, when humans began pumping enormous amounts of carbon dioxide, a heat-trapping greenhouse gas, into the atmosphere. For this January through July, average temperatures were the warmest on record, the National Oceanic and Atmospheric Administration reported Friday.
The warming has moved in fits and starts, and the cumulative increase may sound modest. But it is an average over the entire planet, representing an immense amount of added heat, and is only the beginning of a trend that most experts believe will worsen substantially.
If the earth were not warming, random variations in the weather should cause about the same number of record-breaking high temperatures and record-breaking low temperatures over a given period. But climatologists have long theorized that in a warming world, the added heat would cause more record highs and fewer record lows.
The statistics suggest that is exactly what is happening. In the United States these days, about two record highs are being set for every record low, telltale evidence that amid all the random variation of weather, the trend is toward a warmer climate.
Next winter there will be a snow storm, and some wag or idiot1 will make a lame joke about Al Gore and cold weather. Remember this quote:
“Global warming, ironically, can actually increase the amount of snow you get,” said Kevin Trenberth, head of climate analysis at the National Center for Atmospheric Research in Boulder, Colo. “But it also means the snow season is shorter.”
- the two terms are closely related [↩]