With all the attention to the Ebola virus and other pathogens floating around in bodily fluids and the air, we may not be aware that the dirt beneath our feet is home to thousands of bacteria and other microorganisms.
As a middle school student in Tallahassee, Florida, Kelly Caylor built a weather balloon for the science fair. Decades later, he's distributing high-tech environmental sensors, or "pods," throughout sub-Saharan Africa.
This bizarre structure is not from the prop shop of a science fiction movie, though it may well provide inspiration there. What might you guess this claw-like appendage is attached to?
Recently the United Nations warned that the world could suffer a 40 percent shortfall in water by 2030 unless countries dramatically cut consumption.
The widespread use of biosolids could contaminate groundwater near farms with a variety of chemicals, including anti-depressants such as Prozac and hormone-disrupting compounds in antibacterial soaps