ASPEN, Colo. - President Clinton and Vice President Gore are using this summer's dog days to bolster fearsome warnings that the globe is warming up, but experts say the duo are overheating Americans with fudged data.
With greater intensity as the summer days get hotter, the president has been declaring that the climate is its hottest in 500 years while the vice president has said evidence of global warming is "piling up" week after week.
But in each case, they are leaving out key facts, according to climate experts:
* While Mr. Clinton is using newly reviewed 2,000-year-old Chinese weather and crop data to make his case for global warming, he is only looking back 500 years, a time of the sharply cooler "mini-Ice Age," and ignoring the data showing that the world was warmer than now.
* Mr. Gore's charge last week that "the evidence of global warming keeps piling up, month after month, week after week," was made without the obvious context that the calendar is moving into the dog days of summer.
* The government office in charge of temperature readings claims accurate data only goes back 100 years.
"It's getting silly," said Thomas Gale Moore, a former member of President Reagan's Council of Economic Advisors. "Next they'll be saying it's significantly warmer today than six months ago [in January]." he added.
"This is what they usually do, play with the data. Depending on where you start and stop, you can make the data say what you want," said S. Fred Singer, president of the Science and Environment Policy Project.
"The public are still not wise to it," he added.
The administration has been using the heat wave to build its case for a global warming treaty that would sharply reduce industrial pollutants and provide money to study the issue and educate the public on global warming.
Mr. Clinton and the vice president have referenced global warming at each campaign stop. They have suggested global warming is to blame for the fires in Florida and a recent heat wave despite climate experts claiming it is an aftereffect of El Nino and its summer cousin La Nina.
Mr. Gore, for example, held a recent press conference to blame the daily summer temperature increases on global warming - not the arrival of late July and August, commonly the hottest time of the year.
"Usually the climate does warm in the middle of July. That's normal," said Mr. Moore.
The president increased his focus on global warming after returning from China, where he claimed to have received data dating back to the 15th century showing temperature increases on the globe.
Speaking at a July 9 Miami Democratic fund-raiser at the home of film star Sylvester Stallone, Mr. Clinton said, "When I was in China, I was reminded that one of the reasons we have weather records going back hundreds of years is that the Chinese weather people - what we now call meteorologists - have literally been keeping detailed records since the 15th century. And we now know that the five hottest years recorded since the 1400s all have occurred in the 1990s - every one of them."
A week later, he told a gathering of Girls Nation, "There is ample evidence now that what my wonderful vice president has been saying for years and years and years is true: that the climate of the globe is warming at a rate which is unsustainable, which will lead us to more extreme weather conditions. We now have records going back over 500 years which we can use to measure what the temperature was on this planet."
Here to host a weekend retreat of major Democratic donors, he said early yesterday: "This is not a game. We cannot afford to go into denial about this."
Elliot Diringer, spokesman for the Council on Environmental Quality, said the president was referring to soil samples and tree-ring data. "That type of evidence does suggest climate change effect in that region," he said.
What Mr. Clinton didn't say, however, is that the Chinese have kept crop and weather data for over 2,000 years.
According to that information, the weather was warmer 2,000 years ago than it is today.
Mr. Moore, in his new book "Climate of Fear," said Europe and China were unusually warm from about 800 to 1300. After that, a "mini-Ice Age" occurred in the 15th century, dropping temperatures some two to four degrees below those of the 20th Century.
"If you start then, there's no doubt that the world has warmed since," he said.
"They just conveniently pick their starting point at the coldest period," Mr. Moore said. "You can't do that in science."
Mr. Singer said the Chinese data doesn't give temperatures because the thermometer wasn't invented until 1632. He said the data instead shows what crops were grown and at what altitudes.
Tom Ross of the National Climate Data Center said accurate temperature data collected by the federal government goes back only 100 years.
"The reliable records began about 1880," he said.
Scientists generally agree that the climate has warmed a degree over the past several hundred years due to greenhouse gases being released in the atmosphere.
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