Even "moderate additional" greenhouse emissions are likely to push Earth past "critical tipping points" with "dangerous consequences for the planet," according to research conducted by NASA and the Columbia University Earth Institute.
With just 10 more years of "business as usual" emissions from the burning of coal, oil and gas, says the NASA/Columbia paper, "it becomes impractical" to avoid "disastrous effects."
The study appears in the journal Atmospheric Chemistry and Physics. Its lead author is James Hansen, director of NASA's Goddard Institute for Space Studies in New York.
The forecast effects include "increasingly rapid sea-level rise, increased frequency of droughts and floods, and increased stress on wildlife and plants due to rapidly shifting climate zones," according to the NASA announcement.
Bro i m Osamazia from peshawar..iwant to ask something..i have got 83%marks in matric nd 80 %marks in fsc..now i want to join paf..often they announce their vacancies in feb but this time they havent announced ..so plz have u any information that when wll thy announce ..soon or late?
sir my name is omer , i am from karachi , sir i am a die hard pakistan air forces lover , i want to join paf university of aeronautical engineering, sir i got 80% in matric , and have gotten 55% in 1 yr... sir i promise you that i have been really working hard and i will inshallah get enuf percentage in 2nd year that my average percentage increases by 68 or 69percent, sir plz tell , tht can i apply , am i eligible can i join PAF COLLEGE OF AERONAUTICAL ENGINEERING , sir i will do anything to join it , sir please reply at the earliest.plz