Climate change alarmists either ignore the existence of the Medieval Warm Period or say that it was regional rather than global. A new report, however, shows that the warming was worldwide. The Medieval Warm Period is a profound problem for those who claim that man's 20th- and 21st-century carbon dioxide emissions are warming the earth.

If an era as warm or warmer than today did indeed exist 500 to 1,000 years ago, before man had invented the CO2-emitting internal combustion engine, then it weakens their claim that any warming occurring now is due to human activity. The reality of such a period is a strong sign that climate change is both natural and cyclical, not moved by man's modern habits. In fact, confirmation of the Medieval Warm Period not only dilutes the alarmists' argument, it virtually kills it. So rather than deal with it, they act as if it never happened. They want to try to make it, as one message among the Climate-gate emails suggested, "go away."...

Scientists from Syracuse University, however, have found evidence that strongly affirms that the Medieval Warm Period was no myth but rather a global event, affecting even Antarctica. Their study, published in the April issue of Earth and Planetary Science Letters, carries the academic title of "An Ikaite record of late Holocene climate at the Antarctic Peninsula."

Journalists shouldn't let the wonkish title stop them from reporting on the study. And they probably won't. Instead, the bulk of the mainstream media will conveniently miss the study for another reason: It doesn't fit their man-is-causing-the-earth-to-warm narrative. There's nothing new there, though. It's an old habit for the media to either ignore or poorly cover evidence that doesn't support global warming alarmism...

Don't expect the media-enviro-alarmist complex to give up its campaign because research has yet again shown that its case against humanity continues to wilt under scrutiny. It's too heavily invested in its story and the goal — stronger government, weaker capitalism and diminished liberty — that it's been zealously working toward. But it has suffered another small cut, and the minor wounds keep adding up as the facts continue to roll out and the effects of climate change that we have been warned about never develop. Its golden age will have been pushed closer to its conclusion by a warm period.

Editorial, Investor's Business Daily
March 27, 2012