Climatic seasonality is a product of the Earth's tilt, so that small changes in obliquity affect the contrasts between summer and winter, particularly at high latitudes.
(Climatic seasonality; is; a product of the Earth's tilt) (small changes in obliquity; affect; the contrasts between summer and winter, particularly at high latitudes)
Climatic seasonality small changes in obliquity
is affect
a product of the Earth's tilt
the contrasts between summer and winter, particularly at high latitudes