A United Nations report (State of World Population 2011) projects that world population, instead of stabilizing at above 9 billion by 2050, will keep growing and may hit 10.1 billion by 2100. Can the Earth support seven billion now, and the three billion people who are expected to be added by the end of this century?
Earth Science News
A magnitude 7.2 earthquake struck 12 miles northeast of the city of Van in eastern Turkey on Sunday, October 23, 2011. The earthquake occurred at a depth of 12.4 miles and caused strong shaking throughout a broad area, causing significant damage to Van and neighboring towns.
Hurricane Irene may be gone, but she leaves behind lives lost, widespread power outages, intense flooding, and property damage across more than 12 states. The storm ranks as the 10th $1 billion disaster of 2011.
August 23, 2011. - Residents from Georgia to Canada felt the ground shake from an earthquake that occurred not on the west coast, but in the center of the North American tectonic plate. It had been 70 years since the east coast felt an earthquake like the 5.8 that originated in Mineral, Virginia.
Most people prefer their diamonds pure and free from imperfections. But a study of more than 4,000 inclusions (pockets of impurities) found in diamonds has revealed that Earth’s plate tectonic history began much earlier than scientists originally thought.
Extreme heat was felt across the United States in the summer of 2011, breaking and setting new records for daytime and evening temperatures. A heat wave is a natural disaster, a “silent killer” for people that are caught unprepared. The impact is being felt beyond humans, and will be felt beyond 2011.
Designed to the be the largest hydroelectric power plant in Africa, Ethiopia will begin construction on a $4.7 billion Grand Millennium Dam across the Blue Nile River. The dam will supply more than 5,000 megawatts of electricity. Additional Ethiopian dam construction projects are ongoing and close to completion, but at what environmental and human costs?
With advances in technology and access to remote locations across the globe, scientists are rediscovering species that were once thought to have disappeared or thought to be extinct.
New DNA evidence shows that polar bears carry genetic material that came from Ireland, where grizzlies (brown bears) once roamed around 30,000 years ago. The finding could change our view not only of polar bear evolution but of the role of cross-species breeding more generally in shaping the living world.