Shift in Earth's Orbit Transformed 'Green Sahara' into Planet's Largest Desert

Changes in the Earth’s tilt cause changes in weather patterns. Such a change is believed to have made the “Green Sahara” go dry. A change in the Earth’s orbit, many scientists believe, transformed the “Green Sahara” into what is now the largest desert on the planet. While scientists are still trying to find out if the slow shift in orbit had rapid or gradual environmental consequences, they say Earth’s orbit will continue to change today and into the future... Read More