The hydrosphere or water realm makes up 71% of the earth’s surface.
Until recently water pollution has been a relatively local problem of the developed world. Eutrophication is the most common problem, where inland waters and rivers are polluted with nitrogen and phosphorus run-off from fertilisers used in intensive agriculture and discharge of phosphate-rich sewage effluents.
OPPORTUNITY REDUCTION OF NITROGEN FERTILIZER APPLICATION RADICALS.
An agreement of two years has been signed between Nasa and synthetic biologists at Brown and Stanford Universities for human colonization of Mars. Nasa will do this with the help of two projects from the synthetic biologists.