Role of Ice Age Dust in Climate Change . Climate shift linked to rise of Himalayas, Tibetan plateau . Greenhouse gases main reason for quicker northern winter warming . Most-serious greenhouse gas is increasing, international study finds . A 'four-piston engine' drives earth from the inside, new study shows .
New technology reduces noxious emissions .
Miniature unmanned planes descend on arctic for research . Findings may boost efforts to destroy pollutants with ultrasound . Once discarded fly ash now being used to clean contaminated water at Temple University laboratory . Earthquake magnifier can turn a distant tremor into a disaster on your doorstep . Synthetic clay removes radium from water and soil .