Heating up tax spheres

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America faces severe housing, financial, energy, food, unemployment and recessionary shocks. But legislators, bureaucrats and presidential candidates seem intent on making them worse, by imposing onerous climate change rules and restricting fossil fuel development and use.

Even the White House now wants "reasonable and responsible" legislation, to avert a "regulatory nightmare" from overlapping state and federal climate rules. It falsely assumes costly federal regulations, emission mandates and hidden cap-and-trade taxes would be preferable.

Earth warmed a degree over the last quarter-century, as it emerged further from the Little Ice Age, and humans may have played a role. However, hundreds of scientists say there is no evidence of a looming climate catastrophe driven primarily by human greenhouse gas emissions.

Our planet has experienced numerous climate shifts, they point out, including prolonged ice ages, a 400-year Medieval Warm Period and a 500-year Little Ice Age. Climate scientists still don't understand what caused these events — or the temperature swings of the last century. As carbon dioxide levels rose steadily, temperatures climbed from 1910 to 1945, fell between 1945 and 1975, and increased again from 1975 to 1998, notes International Arctic Research Center founding director Syun-Ichi Akasofu.

Four of the 10 hottest years in U.S. history were in the 1930s. Average global temperatures stabilized in 1998, and then fell 1.1 degrees Fahrenheit in the last 12 months, satellite measurements show. Ice core data demonstrate that higher atmospheric carbon dioxide levels followed rising temperatures, by hundreds of years — the exact opposite of climate chaos hypotheses.

Inconvenient facts like these force alarmists to rely on computer models that generate Frankenclime monsters, to generate fear of climate Armageddon.

Climate models help scientists evaluate possible consequences of changing economic growth, emission, cloud cover and other variables. But they cannot reproduce the actual climate of the last century, or make accurate predictions even one year in the future, much less 50.

Models reflect the assumptions and hypotheses that go into them — and our still limited understanding of complex, turbulent climate processes that involve the sun, oceans, land masses, water vapor, precipitation, high cirrus clouds and other factors, notes Massachusetts Institute of Technology meteorology professor Richard Lindzen.

They place too much emphasis on carbon dioxide, and insufficient attention to extraterrestrial factors like changes in the Earth's irregular orbit around the sun, solar energy levels, and solar winds that appear to influence the level of cosmic rays reaching Earth, and thus the formation of cloud cover and penetration of infrared solar radiation. They fail to incorporate the effects that periodic shifts in Pacific Ocean currents have on Arctic temperatures and sea ice.

Different models often generate opposite climate scenarios for the same regions, University of Alabama at Huntsville climatologist John Christy points out. One says the Dakotas and Rio Grande Valley would become complete deserts; another says huge swamps.