The Globalwarming Debate

Global-warming alarmists believe that human production of greenhouse gases, particularly carbon dioxide, with its concomitant water vapor feedback mechanism, has begun to add to the natural greenhouse effect, thereby raising global temperatures inordinately during the 20th century, with predictions of further increases in the 21st century that could be catastrophic. Dr. James E. Hansen, perhaps the most respected spokesman for the alarmists, said Ignoring the climate problem at this time, for...

Ice Ages And Interglacial Periods

Pleistocene Glacial Period

As we peer back further in time, the variations that occurred in the Earth's climate become more profound. The Earth has gone through alternating periods of glaciation when huge ice sheets covered the higher latitudes, and warm periods, some of which extensively melted polar ice. The oceans have risen and fallen as much as a hundred meters through these changes. No sensible study of global climate change can completely ignore this history, even though we are presently in an interglacial period,...