Maryland their spin rates the relative ellipticity (eccentricity) of their orbits During earth's northern hemisphere summer ... the length of the daytime (sunrise-to-sunset) is more than 12 hours the sun is lower in the sky at noon during summer than at noon during winter noontime shadows are longer than during winter the sun rises far to the south of due west and sets far to the north of due east the earth is roughly 13.7% closer to the Sun than it will be during (northern) winter Seasons on earth ... are caused by the fixed tilt of the earth's spin axis toward the sun are dramatically enhanced by the changing distance of the earth from the sun result more from the impact of Global Warming on El Ni&ntilde;o than from the earth's tilt are opposite in the two hemispheres: that is, Albuquerque's summer is Australian winter would be far more severe than they are now if our tilt were decreased to 15 Four of these things can lessen the contrasts of planetary seasons, while one could only exaggerate them.
(the earth; is; roughly 13.7% closer to the Sun) (they; are; T:now) (their spin; is; ) (it; will be; T:during (northern) winter Seasons on earth) (one; could only exaggerate; them) (the sun; sets; far) (our tilt; were decreased; to 15 Four of these things) ('s tilt; are opposite in; the two hemispheres)
the earth they their spin it one the sun our tilt 's tilt
is are is will be could only exaggerate sets were decreased are opposite in
roughly 13.7% closer to the Sun
T:now
T:during (northern) winter Seasons on earth
them
far
to 15 Four of these things
the two hemispheres