Global warming, expected by most climatologists and probably under way today, is caused by changes in the composition of Earth's atmosphere.
(Global warming; expected; by most climatologists; T:today) (Global warming, expected by most climatologists and probably under way today; is caused; by changes in the composition of Earth's atmosphere)
Global warming Global warming, expected by most climatologists and probably under way today
expected is caused
by most climatologists T:today
by changes in the composition of Earth's atmosphere