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.
Science in the News
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.