NASA study traces decade of ammonia air pollution in Africa

A new NASA-led study is the first to document changing atmospheric ammonia (NH3) concentrations in Africa over an extended period. Ammonia is an air pollutant which can lead to heart and lung related illness. When present ...

Climate change warning from collapsed ancient cities

Why did some ancient Khmer and Mesoamerican cities collapse between 900-1500CE while their rural surrounds continued to prosper? Intentional adaptation to climate changed conditions may be the answer, suggests a new study, ...

Hidden green skills

What have plant scientists learned in the laboratory in the past three to five years that could be used to reduce inputs of water, chemical fertilizers and herbicides to agricultural fields?

Getting to the root of the matter

(Phys.org) —Working to identify key genes in the root development of poplar trees, three Michigan Technological University scientists have come up with a new model for how genes interact and affect each other's function. ...

Biochar reduces nasty nitrous oxide emissions on farms

(Phys.org) —In the quest to decrease the world's greenhouse gases, Cornell scientists have discovered that biochar – a charcoal-like substance – reduces the nemesis nitrous oxide from agricultural soil on average by ...

Global worming: Earthworms add to climate change

(Phys.org)—Earthworms are long revered for their beneficial role in soil fertility, but with the good comes the bad: they also increase greenhouse gas emissions from soils, according to a study published Feb. 3 in Nature ...

page 2 from 12