News tagged with soil pollution

Nitrogen in the soil cleans the air

Eutrophication harms the environment in many ways. Unexpectedly, nitrogen fertilizer may also be positive for the environment. And even acidic soils, promoting the destruction of forests, can have a positive ...

Aug 19, 2011
4 / 5 (1) 0 | with audio podcast

Tropical forests are fertilized by air pollution

Scientists braved ticks and a tiger to discover how human activities have perturbed the nitrogen cycle in tropical forests. Studies at two remote Smithsonian Institution Global Earth Observatory sites in Panama ...

Nov 03, 2011
5 / 5 (6) 3 | with audio podcast

Eminent scientist warns of global contamination risks

(Phys.org)—Eighty-three thousand man-made chemicals now circulate freely around the Earth, in water, soil, air, wildlife, food and manufactured goods and people, posing unquantified but genuine hazards to human and environmental ...

Feb 26, 2013
3.8 / 5 (4) 1

China wrestles with cost of cleaner environment

(AP)—Facing public outrage over smog-choked cities and filthy rivers, China's leaders are promising to clean up the country's neglected environment—a pledge that sets up a clash with political pressures ...

Mar 12, 2013
not rated yet 2

A genetic alternative to fertilizer

Several studies have shown that a lack of nitrogen in soils adversely affects crop yields. The modern use of nitrogen fertilizers has improved yields to meet expanding global food demand, but in some cases ...

Jun 01, 2012
not rated yet 0