How much of the earth's land area is inhabitable?
Less than half of Earth's land area is inhabitable. The source states that land comprises only about 20 to 23 percent of the planet's surface, and of that, vast regions such as the Sahara, the Rocky Mountains, and Siberia are uninhabitable, leaving only a small percentage fit for human livelihood.
Les explains that the present planet is about 75 to 80 percent water, leaving only 20 to 23 percent as land area. Of that land, he notes that less than half is inhabitable. He cites the vast Sahara as uninhabitable, parts of the Rocky Mountain area in the western United States as practically uninhabitable, and vast areas of Siberia and around the planet as unimaginable square miles that are uninhabitable. So it boils down to a small percentage of the planet's surface being fit for human livelihood. In contrast, before the flood and at the time of Adam, Les teaches it was practically the opposite, with abundant vegetation and room for an abundant explosion of the human race and animal kingdom.